please send answer asap
3. Find the limits. (a) (5 points) lim cos(x+sin I) (b) (5 points) lim (V x2 + 4x +1 -I) 00 4-2 (c) (5 points) lim 3+4+ 14 - 3

Answers

Answer 1

To find the limit of cos(x+sin(x)) as x approaches 0, we can directly substitute 0 into the expression:lim(x→0) cos(x+sin(x)) = cos(0+sin(0)) = cos(0+0) = cos(0) = 1. Therefore, the limit of cos(x+sin(x)) as x approaches 0 is 1.

(b) To find the limit of (sqrt(x^2 + 4x + 1) - 1) / (x - 4) as x approaches 2, we can simplify the expression by multiplying the numerator and denominator by the conjugate of the numerator:

lim(x→2) (sqrt(x^2 + 4x + 1) - 1) / (x - 4) = lim(x→2) [(sqrt(x^2 + 4x + 1) - 1) * (sqrt(x^2 + 4x + 1) + 1)] / [(x - 4) * (sqrt(x^2 + 4x + 1) + 1)]

Simplifying further, we get:

lim(x→2) (x^2 + 4x + 1 - 1) / [(x - 4) * (sqrt(x^2 + 4x + 1) + 1)] = lim(x→2) (x^2 + 4x) / [(x - 4) * (sqrt(x^2 + 4x + 1) + 1)]

Now, we can substitute x = 2 into the expression:

im(x→2) (2^2 + 4*2) / [(2 - 4) * (sqrt(2^2 + 4*2 + 1) + 1)] = lim(x→2) (4 + 8) / (-2 * (sqrt(4 + 8 + 1) + 1)) = 12 / (-2 * (sqrt(13) + 1)) = -6 / (sqrt(13) + 1)

Therefore, the limit of (sqrt(x^2 + 4x + 1) - 1) / (x - 4) as x approaches 2 is -6 / (sqrt(13) + 1).

(c) The given expression, lim(x→3) (3 + 4 + sqrt(14 - x)), can be evaluated by substituting x = 3:

lim(x→3) (3 + 4 + sqrt(14 - x)) = 3 + 4 + sqrt(14 - 3) = 3 + 4 + sqrt(11) = 7 + sqrt(11)

Therefore, the limit of the expression as x approaches 3 is 7 + sqrt(11).

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Related Questions

Evaluate the integral by making an appropriate change of variables. IS 2-24 dA, where R is the parallelogram 3.+y enclosed by the lines x-2y=0, x-2y=4, 3x+y=1, and 3x +y=8.

Answers

To evaluate the integral ∬R 2-24 dA over the parallelogram R enclosed by the lines x-2y=0, x-2y=4, 3x+y=1, and 3x+y=8, the value of the integral ∬R 2-24 dA over the parallelogram R is 28.

Let's start by finding the equations of the lines that form the boundary of the parallelogram R. We have x - 2y = 0 and x - 2y = 4, which can be rewritten as y = (x/2) and y = (x/2) - 2, respectively. Similarly, 3x + y = 1 and 3x + y = 8 can be rewritten as y = -3x + 1 and y = -3x + 8, respectively.

To simplify the integral, we can make a change of variables by setting u = x - 2y and v = 3x + y. The Jacobian of this transformation is found to be |J| = 7. By applying this change of variables, the region R is transformed into a rectangle in the uv-plane with vertices (0, 1), (4, 8), (4, 1), and (0, 8).

The integral becomes ∬R 2-24 dA = ∬R 2|J| du dv = 2∬R 7 du dv = 14∬R du dv. Now, integrating over the rectangle R in the uv-plane is straightforward. The limits of integration for u are from 0 to 4, and for v, they are from 1 to 8. Thus, we have ∬R du dv = ∫[0,4]∫[1,8] 1 du dv = ∫[0,4] (u∣[1,8]) du = ∫[0,4] 7 du = (7u∣[0,4]) = 28.

Therefore, the value of the integral ∬R 2-24 dA over the parallelogram R is 28.

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4 (2) Find and classify the critical points of the following function: f(x,y)=x+2y² - 4xy. (3) When converted to an iterated integral, the following double integrals are casier to eval- uate in one o

Answers

(2) To find the critical points of the function f(x, y) = x + 2y² - 4xy, we need to determine the values of (x, y) where the partial derivatives with respect to x and y are both equal to zero.

Taking the partial derivative of f(x, y) with respect to x, we get ∂f/∂x = 1 - 4y. Setting this equal to zero gives 1 - 4y = 0, which implies y = 1/4. Taking the partial derivative of f(x, y) with respect to y, we get ∂f/∂y = 4y - 4x. Setting this equal to zero gives 4y - 4x = 0, which implies y = x. Therefore, the critical point occurs at (x, y) = (1/4, 1/4).  (3) The given question seems to be incomplete as it mentions "the following double integrals are casier to eval- uate in one o."

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Find the vector represented by the directed line segment with initial and terminal points. A(4, -1) B(1, 2) AB=
Find the vector represented by the directed line segment with initial and terminal poin

Answers

The vector represented by the directed line segment AB, with initial point A(4, -1) and terminal point B(1, 2) is (-3, 3).

Given the vector represented by the directed line segment with initial and terminal points. To calculate the vector AB, we subtract the coordinates of point A from the coordinates of point B. The x-component of the vector is obtained by subtracting the x-coordinate of A from the x-coordinate of B: 1 - 4 = -3.

The y-component of the vector is obtained by subtracting the y-coordinate of A from the y-coordinate of B: 2 - (-1) = 3. Therefore, the vector represented by the directed line segment AB is (-3, 3).

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y = 4x²+x-l
y=6x-2

Pls help asap Will give brainliest

Answers

The value of x is 1/4 or 1 and y is -1/2 or 4.

We can set the right sides of the equations equal to each other:

4x² + x - 1 = 6x - 2

Next, we can rearrange the equation to bring all terms to one side:

4x² + x - 6x - 1 + 2 = 0

4x² - 5x + 1 = 0

Now, solving the equation using splitting the middle term as

4x² - 5x + 1 = 0

4x² - 4x - x + 1 = 0

4x( x-1) - (x-1)= 0

(4x -1) (x-1)= 0

x= 1/4 or x= 1

Now, for y

If x= 1/4, y = 6(1/4) - 2 = 3/2 - 2 = -1/2

If x= 1 then y= 6-2 = 4

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11. (-/1 Points) DETAILS LARCALC11 14.1.003. Evaluate the integral. *) 1 x (x + 67) dy Need Help? Read It Watch It

Answers

To evaluate the integral of [tex]1/(x(x + 67))[/tex] with respect to y, we need to rewrite the integrand in terms of y.

The given integral is in the form of x dy, so we can rewrite it as follows:

∫[tex](1/(x(x + 67))) dy[/tex]

To evaluate this integral, we need to consider the limits of integration and the variable of integration. Since the given integral is with respect to y, we assume that x is a constant. Thus, the integral becomes:

∫[tex](1/(x(x + 67))) dy = y/(x(x + 67))[/tex]

The antiderivative of 1 with respect to y is simply y. The integral with respect to y does not affect the x term in the integrand. Therefore, the integral simplifies to y/(x(x + 67)).

In summary, the integral of 1/(x(x + 67)) with respect to y is given by y/(x(x + 67)).

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The evaluated integral is (1/67) × ln(|x|) - (1/67) × ln(|x + 67|) + C.

How did we get the value?

To evaluate the integral ∫ (1 / (x × (x + 67))) dx, we can use the method of partial fractions. The integrand can be expressed as:

1 / (x × (x + 67)) = A / x + B / (x + 67)

To find the values of A and B, multiply both sides of the equation by the common denominator, which is (x × (x + 67)):

1 = A × (x + 67) + B × x

Expanding the right side:

1 = (A + B) × x + 67A

Since this equation holds for all values of x, the coefficients of the corresponding powers of x must be equal. Therefore, the following system of equations:

A + B = 0 (coefficient of x⁰)

67A = 1 (coefficient of x⁻¹)

From the first equation, find A = -B. Substituting this into the second equation:

67 × (-B) = 1

Solving for B:

B = -1/67

And since A = -B, we have:

A = 1/67

Now, express the integrand as:

1 / (x × (x + 67)) = 1/67 × (1 / x - 1 / (x + 67))

The integral becomes:

∫ (1 / (x × (x + 67))) dx = ∫ (1/67 × (1 / x - 1 / (x + 67))) dx

Now we can integrate each term separately:

∫ (1/67 × (1 / x - 1 / (x + 67))) dx = (1/67) × ∫ (1 / x) dx - (1/67) × ∫ (1 / (x + 67)) dx

Integrating each term:

= (1/67) × ln(|x|) - (1/67) × ln(|x + 67|) + C

where ln represents the natural logarithm, and C is the constant of integration.

Therefore, the evaluated integral is:

∫ (1 / (x × (x + 67))) dx = (1/67) × ln(|x|) - (1/67) × ln(|x + 67|) + C.

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At what points is the following function continuous? 2 x - 2x - 15 x75 f(x) = X-5 8, x= 5 The function is continuous on (Type your answer in i

Answers

The work f(x) = (2x - 2)/(x - 5) is continuous at all focuses but for x = 5. , the denominator of the work gets to be zero, which comes about in unclear esteem.

To decide where work is persistent, we ought to consider two primary variables:

the function's logarithmic frame and any particular focuses or interims shown.

The work given is f(x) = 2x -[tex]2x^2 - 15x^75.[/tex]

To begin with, let's analyze the logarithmic frame of the work. The terms within the work incorporate polynomials [tex]x, x^2, x^75[/tex]and these are known to be ceaseless for all values of x.

Another, we ought to look at the particular focuses or interims said. In this case, the work demonstrates a point of intrigue, which is x = 5.

To decide in the event that the work is persistent at x = 5, we ought to check on the off chance that the function's esteem approaches the same esteem from both the left and right sides of x = 5.

On the off chance that the function's esteem remains reliable as x approaches 5 from both bearings, at that point it is persistent at x = 5.

To assess this, we will substitute x = 5 into the work and see in case it yields limited esteem. Stopping in x = 5, we have:

f(5) = 2(5) - [tex]2(5^2) - 15(5^75)[/tex]

After assessing the expression, we'll decide in case it comes about in limited esteem or approaches interminability. Tragically, there seems to be a mistake within the given work as x[tex]^75[/tex] does not make sense. If we assume it was implied to be[tex]x^7[/tex], able to continue with the calculation.

f(5) = 2(5) - [tex]2(5^2) - 15(5^7)[/tex]

Disentangling encouragement, we get:

f(5) = 10 - 2(25) - 15(78125)

= 10 - 50 - 1,171,875

f(5) =  -1,171,915

Since the result could be limited esteem, we will conclude that the work is persistent at x = 5.

In outline, the work f(x) = [tex]2x - 2x^2 - 15x^7[/tex]is persistent for all values of x, and particularly, it is nonstop at x = 5. 

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Analyze the long-term behavior of the map xn+1 = rxn/(1 + x^2_n), where 0. Find and classify all fixed points as a function of r. Can there be periodic so- lutions? Chaos?

Answers

The map xn+1 = rxn/(1 + x^2_n), where 0, has fixed points at xn = 0 for all values of r, and additional fixed points at xn = ±√(1 - r) when r ≤ 1, requiring further analysis to determine the presence of periodic solutions or chaos.

To analyze the long-term behavior of the map xn+1 = rxn/(1 + x^2_n), where 0, we need to find the fixed points and classify them as a function of r.

Fixed points occur when xn+1 = xn, so we set rxn/(1 + x^2_n) = xn and solve for xn.

rxn = xn(1 + x^2_n)

rxn = xn + xn^3

xn(1 - r - xn^2) = 0

From this equation, we can see that there are two potential types of fixed points:

xn = 0

When xn = 0, the equation simplifies to 0(1 - r) = 0, which is always true regardless of the value of r. So, 0 is a fixed point for all values of r.

1 - r - xn^2 = 0

This equation represents a quadratic equation, and its solutions depend on the value of r. Let's solve it:

xn^2 = 1 - r

xn = ±√(1 - r)

For xn to be a real fixed point, 1 - r ≥ 0, which implies r ≤ 1.

If 1 - r = 0, then xn becomes ±√0 = 0, which is the same as the fixed point mentioned earlier.

If 1 - r > 0, then xn = ±√(1 - r) will be additional fixed points depending on the value of r.

So, summarizing the fixed points:

When r ≤ 1: There are two fixed points, xn = 0 and xn = ±√(1 - r).

When r > 1: There is only one fixed point, xn = 0.

Regarding periodic solutions and chaos, further analysis is required. The existence of periodic solutions or chaotic behavior depends on the stability and attractivity of the fixed points. Stability analysis involves examining the behavior of the map near each fixed point and analyzing the Jacobian matrix to determine stability characteristics.

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Find an equation in Cartesian form (that is, in terms of (×, y, 2) coordinates) of
the plane that passes through the point (2, y, 2) = (1, 1, 1) and is normal to the
vector v = 3i + 2j + k.

Answers

To find an equation in Cartesian form of a plane passing through a given point and with a normal vector, we can use the point-normal form of the equation.

The equation of a plane in Cartesian form can be expressed as Ax + By + Cz = D, where (x, y, z) are the coordinates of any point on the plane, and A, B, C are the coefficients of the variables x, y, and z, respectively.

To find the coefficients A, B, C and the constant D, we can use the point-normal form of the equation.

In this case, the given point on the plane is (2, y, 2) = (1, 1, 1), and the normal vector is v = (3, 2, 1). Applying the point-normal form, we have:

(3, 2, 1) dot ((x, y, z) - (2, y, 2)) = 0

Expanding and simplifying the dot product, we get:

3(x - 2) + 2(y - y) + (z - 2) = 0

Simplifying further, we have:

3x - 6 + z - 2 = 0

Combining like terms, we obtain the equation of the plane in Cartesian form:

3x + z = 8

Therefore, the equation in Cartesian form of the plane passing through the point (2, y, 2) = (1, 1, 1) and with a normal vector v = 3i + 2j + k = (3, 2, 1) is 3x + z = 8.

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When we use the Ration Tout on the series 37 (+1) we find that the timetim and hence the wa (-3)1+Zn (n+1) n2 31+n V n=2 lim n-00 an+1 an

Answers

The limit [tex]\(\lim_{n\to\infty}\left|\frac{a_{n+1}}{a_n}\right|\)[/tex] is equal to 3, and hence the series is divergent.

To determine whether the series converges or diverges, we can use the Ratio Test. The Ratio Test states that if the limit [tex]\(\lim_{n\to\infty}\left|\frac{a_{n+1}}{a_n}\right|\)[/tex] is less than 1, the series converges. If it is greater than 1 or equal to 1, the series diverges.

Calculate the ratio of consecutive terms:

[tex]\(\frac{a_{n+1}}{a_n} = \frac{\frac{(-3)^{1+7(n+1)}(n+2)}{(n+1)^23^{n+2}}}{\frac{(-3)^{1+7n}(n+1)}{n^23^{1+n}}}\)[/tex]

Simplify the expression:

[tex]\(\frac{(-3)^{1+7(n+1)}(n+2)}{(n+1)^23^{n+2}} \cdot \frac{n^23^{1+n}}{(-3)^{1+7n}(n+1)}\)[/tex]

Cancel out common factors:

[tex]\(\frac{(-3)(n+2)}{(n+1)(-3)^7} = \frac{(n+2)}{(n+1)(-3)^6}\)[/tex]

Take the limit as [tex]\(n\)[/tex] approaches infinity:

[tex]\(\lim_{n\to\infty}\left|\frac{(n+2)}{(n+1)(-3)^6}\right|\)[/tex]

Evaluate the limit:

As [tex]\(n\)[/tex] approaches infinity, the value of [tex]\((n+2)/(n+1)\)[/tex] approaches 1, and [tex]\((-3)^6\)[/tex] is a positive constant.

Hence, the final result is [tex]\(\lim_{n\to\infty}\left|\frac{a_{n+1}}{a_n}\right| = 3^{-6}\), which is equal to \(1/729\)[/tex].

Since [tex]\(1/729\)[/tex] is less than 1, the series diverges according to the Ratio Test.

The complete question must be:

When we use the Ration Test on the series [tex]\sum_{n=2}^{\infty}\frac{\left(-3\right)^{1+7n}\left(n+1\right)}{n^23^{1+n}}[/tex] we find that the limit [tex]\lim\below{n\rightarrow\infty}{\left|\frac{a_{n+1}}{a_n}\right|}[/tex]=_____ and hence  the series is

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Use your calculator to evaluate cos measure. *(-0.26) to 3 decimal places. Use radian

Answers

The cosine of -0.26 radians, rounded to three decimal places, is approximately 0.965.

To calculate the cosine of -0.26 radians, we use a trigonometric function that relates the ratio of the length of the adjacent side of a right triangle to the hypotenuse. In this case, the angle of -0.26 radians is measured counterclockwise from the positive x-axis in the unit circle.

The cosine of an angle is equal to the x-coordinate of the point where the angle intersects the unit circle. By evaluating this, we find that the cosine of -0.26 radians is approximately 0.965. This means that the x-coordinate of the corresponding point on the unit circle is approximately 0.965.

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Use cylindrical shells to compute the volume. The region bounded by y=x^2 and y = 32 - x^2, revolved about x = -8.
V=_____.

Answers

The volume of the region bounded by y=x^2 and y=32-x^2, revolved about x=-8 using cylindrical shells is 128π cubic units.

To compute the volume of the region bounded by y=x^2 and y=32-x^2, revolved about x=-8 using cylindrical shells, we need to integrate the expression 2πrh*dx, where r is the distance from the axis of revolution to the shell, h is the height of the shell, and dx is the thickness of the shell.

First, we need to find the limits of integration. The curves y=x^2 and y=32-x^2 intersect when x=±4. Therefore, we can integrate from x=-4 to x=4.

Next, we need to express r and h in terms of x. The axis of revolution is x=-8, so r is equal to 8+x. The height of the shell is equal to the difference between the two curves, which is (32-x^2)-(x^2)=32-2x^2.

Substituting these expressions into the integral, we get:

V = ∫[-4,4] 2π(8+x)(32-2x^2)dx

To evaluate this integral, we first distribute and simplify:

V = ∫[-4,4] 64π - 4πx^2 - 16πx^3 dx

Then, we integrate term by term:

V = [64πx - (4/3)πx^3 - (4/4)πx^4] [-4,4]

V = [(256-64-256)+(256+64-256)]π

V = 128π

Therefore, the volume of the region bounded by y=x^2 and y=32-x^2, revolved about x=-8 using cylindrical shells is 128π cubic units.

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5. 5. Write the first equation in polar form and the second one in Cartesian coordinates. a. x + y = 2 b. r= -4sino

Answers

a. The equation in polar form is rcosθ + rsinθ = 2

b. The cartesian coordinates is xcosθ + ysinθ = -4sinθ

a. To write the equation x + y = 2 in polar form, we can use the conversions between Cartesian and polar coordinates.

In Cartesian coordinates, we have x = rcosθ and y = rsinθ, where r represents the distance from the origin and θ represents the angle with respect to the positive x-axis.

Substituting these values into the equation x + y = 2, we get:

rcosθ + rsinθ = 2

This is the equation in polar form.

b. The equation r = -4sinθ is already in polar form, where r represents the distance from the origin and θ represents the angle with respect to the positive x-axis.

To convert this equation to Cartesian coordinates, we can use the conversions between polar and Cartesian coordinates:

x = rcosθ and y = rsinθ.

Substituting these values into the equation r = -4sinθ, we get:

xcosθ + ysinθ = -4sinθ

This is the equation in Cartesian coordinates.

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Find the area of each triangle. Round your answers to the nearest tenth.

Answers

The area of each triangle is: 7554.04 m² and 311.26 km².

Here, we have,

from the given figure,

we get,

triangle 1:

a = 104m

b = 226 m

angle Ф= 40 degrees

so, we have,

area = a×b×sinФ/2

        = 104×226×sin40/2

        = 7554.04 m²

triangle 2:

a = 34 km

b = 39 km

angle Ф= 28 degrees

so, we have,

area = a×b×sinФ/2

        = 34×39×sin28/2

        = 311.26 km²

Hence, the area of each triangle is: 7554.04 m² and 311.26 km².

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show steps, thank you!
do the following series converge or diverge? EXPLAIN why the
series converges or diverges.
a.) E (summation/sigma symbol; infinity sign on top and k=1 on
bottom) (-2)^k / k!
b

Answers

The series  ∑ₙ=₁⁰⁰(-2)^k / k! by the D'Alembert ratio test converges

What is convergence and divergence of series?

A series is said to converge or diverge if it tends to a particular value as the series increases or decreases.

Since we have the series ∑ₙ=₁⁰⁰[tex]\frac{(-2)^{k} }{k!}[/tex], we want to determine if the series converges or diverges. We proceed as follows.

To determine if the series converges or diverges, we use the D'Alembert ratio test which states that if

[tex]\lim_{n \to \infty} \frac{U_{n + 1}}{U_n} < 1[/tex], the series converges

[tex]\lim_{n \to \infty} \frac{U_{n + 1}}{U_n} > 1[/tex] the series diverges

[tex]\lim_{n \to \infty} \frac{U_{n + 1}}{U_n} = 1[/tex], the series may converge or diverge

Now, since [tex]U_{k} = \frac{(-2)^{k} }{k!}[/tex],

So,  [tex]U_{k + 1} = \frac{(-2)^{k + 1} }{(k + 1)!}[/tex]

So, we have that

[tex]\lim_{k \to \infty} \frac{U_{n + 1}}{U_n} = \lim_{n \to \infty}\frac{ \frac{(-2)^{k + 1} }{(k + 1)!}}{ \frac{(-2)^{k} }{k!}} \\= \lim_{k \to \infty}\frac{ \frac{(-2)^{k}(-2)^{1} }{(k + 1)k!}}{ \frac{(-2)^{k} }{k!}} \\= \lim_{k \to \infty}{ \frac{(-2) }{(k + 1)}}\\[/tex]

= (-2)/(∞ + 1)

= (-2)/∞

= 0

Since [tex]\lim_{k \to \infty} \frac{U_{k + 1}}{U_k} = 0 < 1[/tex],the series converges

So, the series  ∑ₙ=₁⁰⁰[tex]\frac{(-2)^{k} }{k!}[/tex], converges

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Prove that the empty set is a function with domain if f : A-8 and any one of f, A, or Rng() is empty, then all three are empty.

Answers

The empty set can be considered as a function with an empty domain. This means that there are no input values, and therefore no output values, making the function, its domain, and its range all empty.

A function is defined as a set of ordered pairs, where each input value (from the domain) is associated with a unique output value (from the range). In the case of the empty set, there are no ordered pairs because there are no input values. Therefore, the function is empty, and its domain is also empty since there are no elements to assign as input values.

Furthermore, the range of a function is the set of all output values associated with the input values. Since there are no input values in the domain of the empty set function, there are no output values either. Consequently, the range is also empty.

In summary, the empty set can be considered a function with an empty domain. This means that there are no input values, and therefore no output values, resulting in an empty function, an empty domain, and an empty range.

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Find all solutions in Radian: 2 cos = 1"

Answers

The equation 2cos(x) = 1 has two solutions in radians. The solutions are x = 0.5236 radians (approximately 0.524 radians) and x = 2.61799 radians (approximately 2.618 radians).

To find the solutions to the equation 2cos(x) = 1, we need to isolate the cosine function and solve for x. Dividing both sides of the equation by 2 gives us cos(x) = 1/2.

In the unit circle, the cosine function takes on the value of 1/2 at two distinct angles, which are 60 degrees (or pi/3 radians) and 300 degrees (or 5pi/3 radians). These angles correspond to the solutions x = 0.5236 radians and x = 2.61799 radians, respectively.

Therefore, the solutions to the equation 2cos(x) = 1 in radians are x = 0.5236 radians and x = 2.61799 radians.

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Approximate the sum of the series correct to four decimal places. (-1) n+1 n=1 61

Answers

The sum of the series (-1)^(n+1)/(n^61) as n ranges from 1 to infinity, when approximated to four decimal places, is approximately -1.6449.

The given series is an alternating series in the form (-1)^(n+1)/(n^61), where n starts from 1 and goes to infinity. To approximate the sum of this series, we can use the concept of an alternating series test and the concept of an alternating harmonic series.

The alternating series test states that if the terms of an alternating series decrease in magnitude and approach zero as n goes to infinity, then the series converges. In this case, the terms of the series decrease in magnitude as the value of n increases, and they approach zero as n goes to infinity. Therefore, we can conclude that the series converges.

The alternating harmonic series is a special case of an alternating series with the general form (-1)^(n+1)/n. The sum of the alternating harmonic series is well-known and is equal to ln(2). Since the given series is a variation of the alternating harmonic series, we can use this knowledge to approximate its sum.

Using the fact that the sum of the alternating harmonic series is ln(2), we can calculate the sum of the given series. In this case, the exponent in the denominator is different, so the sum will be slightly different as well. Approximating the sum of the series to four decimal places gives us -1.6449.

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In the year 2005, a picture supposedly painted by a famous artist some time after 1715 but before 1765 contains 95.4 percent of its carbon-14 (half-life 5730 years).
From this information, could this picture have been painted by this artist?
Approximately how old is the painting? _______ years

Answers

Approximately, the age of the painting is 400.59 years using carbon-14 dating. However, this negative value indicates that the painting is not from the specified time period, suggesting an inconsistency or potential error in the data or analysis.

Based on the information provided, we can use the concept of carbon-14 dating to determine if the painting could have been created by the artist in question and estimate its age.

Carbon-14 is a radioactive isotope that undergoes radioactive decay over time with a half-life of 5730 years. By comparing the amount of carbon-14 remaining in a sample to its initial amount, we can estimate its age.

The fact that the painting contains 95.4 percent of its carbon-14 suggests that 4.6 percent of the carbon-14 has decayed. To determine the age of the painting, we can calculate the number of half-lives that would result in 4.6 percent decay.

Let's denote the number of half-lives as "n." Using the formula for exponential decay, we have:

0.954 = (1/2)^n

To solve for "n," we take the logarithm (base 2) of both sides:

log2(0.954) = n * log2(1/2)

n ≈ log2(0.954) / log2(1/2)

n ≈ 0.0703 / (-1)

n ≈ -0.0703

Since the number of half-lives cannot be negative, we can conclude that the painting could not have been created by the artist in question.

Additionally, we can estimate the age of the painting by multiplying the number of half-lives by the half-life of carbon-14:

Age of the painting ≈ n * half-life of carbon-14

≈ -0.0703 * 5730 years

≈ -400.59 years

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Apply Gaussian elimination to determine the solution set of the given system. (Let a represent an arbitrary number. If the system is inconsistent, enter INCONSISTENT.) X, - x2 + 4x3 = 0 -2x, + x2 + x3

Answers

The solution set of the given system is {x = 0, x2 = 4a, x3 = -2a}, where 'a' represents an arbitrary number. The given system of equations can be solved using Gaussian elimination.

The solution set of the system is {x = 0, x2 = 4a, x3 = -2a}, where 'a' represents an arbitrary number.

To solve the system using Gaussian elimination, we perform row operations to transform the augmented matrix into row-echelon form. The resulting matrix will reveal the solution to the system.

Step 1: Write the augmented matrix for the given system:

```

1  -1  4 | 0

-2  1   1 | 0

```

Step 2: Perform row operations to achieve row-echelon form:

R2 = R2 + 2R1

```

1  -1   4 | 0

0  -1   9 | 0

```

Step 3: Multiply R2 by -1:

```

1  -1   4 | 0

0   1  -9 | 0

```

Step 4: Add R1 to R2:

R2 = R2 + R1

```

1  -1   4 | 0

0   0  -5 | 0

```

Step 5: Divide R2 by -5:

```

1  -1   4 | 0

0   0   1 | 0

```

Step 6: Subtract 4 times R2 from R1:

R1 = R1 - 4R2

```

1  -1   0 | 0

0   0   1 | 0

```

Step 7: Subtract R1 from R2:

R2 = R2 - R1

```

1  -1   0 | 0

0   0   1 | 0

```

Step 8: The resulting matrix is in row-echelon form. Rewriting the system in equation form:

```

x - x2 = 0

x3 = 0

```

Step 9: Solve for x and x2:

From equation 2, we have x3 = 0, which means x3 can be any value.

From equation 1, we substitute x3 = 0:

x - x2 = 0

x = x2

Therefore, the solution set is {x = 0, x2 = 4a, x3 = -2a}, where 'a' represents an arbitrary number.

In summary, the solution set of the given system is {x = 0, x2 = 4a, x3 = -2a}, where 'a' represents an arbitrary number.

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Given the parametric curve defined by the equations x = et - 1 y= 24 determine the (a) range of all values possible for x (b) range of all values possible for y (c) equation of the curve

Answers

(a) The range of all possible values for x is (-∞, ∞) since the exponential function et can take any real value.

b) The range of all possible values for y is [24, 24].

(c) The equation of the curve is x = et - 1 and y = 24.

How can we determine the range of all possible values for x in the given parametric curve?

The equation x = et - 1 represents the exponential function shifted horizontally by 1 unit to the right. As the exponential function et can take any real value, there are no constraints on the range of x. Therefore, x can be any real number, resulting in the range (-∞, ∞).

How do we find the range of all possible values for y in the parametric curve?

The equation y = 24 represents a horizontal line parallel to the x-axis, located at y = 24. Since there are no variables or expressions involved, the value of y remains constant at 24. Thus, the range of y is a single value, [24, 24].

How is the equation of the curve determined based on the given parametric equations?

The parametric equations x = et - 1 and y = 24 describe a curve in the xy-plane. The x-coordinate is determined by the exponential function shifted horizontally, while the y-coordinate remains constant at 24. Together, these equations define the curve as a set of points where x takes on various values determined by the exponential function and y remains fixed at 24.

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values
A=3
B=9
C=2
D=1
E=6
F=8
please do this question hand written neatly
please and thank you :)
Ах 2. Analyze and then sketch the function x2+BX+E a) Determine the asymptotes. [A, 2] b) Determine the end behaviour and the intercepts? [K, 2] c) Find the critical points and the points of inflect

Answers

a) The function has no asymptotes.

b) The end behavior is determined by the leading term, which is x^2. It increases without bound as x approaches positive or negative infinity. There are no intercepts.

c) The critical points occur where the derivative is zero. The points of inflection occur where the second derivative changes sign.

a) To determine the asymptotes of the function x^2 + BX + E, we need to check if there are any vertical, horizontal, or slant asymptotes. In this case, since we have a quadratic function, there are no vertical asymptotes.

b) The end behavior of the function is determined by the leading term, which is x^2. As x approaches positive or negative infinity, the value of the function increases without bound. This means that the function goes towards positive infinity as x approaches positive infinity and towards negative infinity as x approaches negative infinity. There are no x-intercepts or y-intercepts in this function.

c) To find the critical points, we need to find the values of x where the derivative of the function is zero. The derivative of x^2 + BX + E is 2x + B. Setting this derivative equal to zero and solving for x, we get x = -B/2. So the critical point is (-B/2, f(-B/2)), where f(x) is the original function.

To find the points of inflection, we need to find the values of x where the second derivative changes sign. The second derivative of x^2 + BX + E is 2. Since the second derivative is a constant, it does not change sign. Therefore, there are no points of inflection in this function. please note that the hand-drawn sketch of the function x^2 + BX + E is not provided here, but you can easily plot the function using the given values of A, B, and E on a graph to visualize its shape.

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Use the following diagram to match the terms and examples.


PLEASE ANSWER IF YOU KNOW

Answers

PT = Line

RP = Segment

SR = Ray

∠2 and ∠3 = adjacent angles

∠2 and ∠4 = Vertical angles.

What is a line segment?

A line segment is a section of a straight line that is bounded by two different end points and contains every point on the line between them. The Euclidean distance between the ends of a line segment determines its length.

A line segment is a finite-length section of a line with two endpoints. A ray is a line segment that stretches in one direction endlessly.

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6 Find the particular solution that satisfies the differential equation and initial condition F(1) = 4 = (2 Points) | (32° – 2) dx . O F(x) = x3 - 2x + 4 = X O F(x) = x = r3 - 2x + 5 O F(x) = x3 -

Answers

The particular solution that satisfies the given differential equation and initial condition F(1) = 4 is F(x) = x^3 - 2x + 5.

To find the particular solution, we need to integrate the given differential equation. The differential equation provided is (32° – 2) dx, which simplifies to 30 dx. Integrating this expression with respect to x, we get 30x + C, where C is the constant of integration.

Next, we use the initial condition F(1) = 4 to determine the value of the constant C. Plugging in x = 1 into the expression 30x + C and setting it equal to 4, we have 30(1) + C = 4. Simplifying, we get 30 + C = 4, which gives C = -26.

Therefore, the particular solution that satisfies the differential equation and initial condition F(1) = 4 is F(x) = 30x - 26. This solution satisfies both the given differential equation and the initial condition, ensuring that it is the correct solution for the problem.

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Let f(x) belong to F[x], where F is a field. Let a be a zero of f(x) of multiplicity n, and write f(x)=((x^2)-a)^2 *q(x). If b Z a is a zero of q(x), show that b has the same multiplicity as a zero of q(x) as it does for f(x). (This exercise is referred to in this chapter.)

Answers

This result shows that the multiplicity of a zero is preserved when factoring a polynomial and considering its sub-polynomials.

To show that b has the same multiplicity as a zero of q(x) as it does for f(x), we need to consider the factorization of f(x) and q(x).

Given:

f(x) = ((x^2) - a)^2 * q(x)

Let's assume a zero of f(x) is a, and its multiplicity is n. This means that (x - a) is a factor of f(x) that appears n times. So we can write:

f(x) = (x - a)^n * h(x)

where h(x) is a polynomial that does not have (x - a) as a factor.

Now, we can substitute f(x) in the equation for q(x):

((x^2) - a)^2 * q(x) = (x - a)^n * h(x)

Since ((x^2) - a)^2 is a perfect square, we can rewrite it as:

((x - √a)^2 * (x + √a)^2)

Substituting this in the equation:

((x - √a)^2 * (x + √a)^2) * q(x) = (x - a)^n * h(x)

Now, if we let b be a zero of q(x), it means that q(b) = 0. Let's consider the factorization of q(x) around b:

q(x) = (x - b)^m * r(x)

where r(x) is a polynomial that does not have (x - b) as a factor, and m is the multiplicity of b as a zero of q(x).

Substituting this in the equation:

((x - √a)^2 * (x + √a)^2) * ((x - b)^m * r(x)) = (x - a)^n * h(x)

Expanding both sides:

((x - √a)^2 * (x + √a)^2) * (x - b)^m * r(x) = (x - a)^n * h(x)

Now, we can see that the left side contains factors (x - b) and (x + b) due to the square terms, as well as the (x - b)^m term. The right side contains factors (x - a) raised to the power of n.

For b to be a zero of q(x), the left side of the equation must equal zero. This means that the factors (x - b) and (x + b) are cancelled out, leaving only the (x - b)^m term on the left side.

Therefore, we can conclude that b has the same multiplicity (m) as a zero of q(x) as it does for f(x).

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The graph represents the path of a beanbag toss, where y is the horizontal distance (in feet) and y is the height (in feet). The beanbag is tossed a second time so that it travels the same horizontal distance, but reaches a maximum height that is 2 feet less than the maximum height of the first toss. Find the maximum height of the second toss, and then write a function that models the path of the second toss

Answers

The maximum height of the second toss is 6 ft

The equation is y = -0.04x² + 0.8x + 2

Finding the maximum height of the second toss

Given that the second toss has the following:

Same horizontal distanceMaximum height that is 2 feet less than the first toss

The maximum height of the first toss is 8 ft

So, the maximum height of the second toss is 8 - 2 = 6 ft

Writing a function that models the path of the second toss

Using the function details, we have

vertex = (h, k) = (10, 6)

Point = (x, y) = (0, 2)

The function can be calculated as

y = a(x - h)² + k

So, we have

y = a(x - 10)² + 6

Next, we have

a(0 - 10)² + 6 = 2

So, we have

a = -0.04

So, the equation is

y = -0.04(x - 10)² + 6

Expand

y = -0.04(x² - 20x + 100 + 6

Expand

y = -0.04x² + 0.8x + 2

Hence, the equation is y = -0.04x² + 0.8x + 2

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If m is a real number and 2x^2+mx+8 has two distinct real roots, then what are the possible values of m? Express your answer in interval notation.

Answers

The possible values of the real number m, for which the quadratic equation 2x² + mx + 8 has two distinct real roots, are m ∈ (-16, 16) excluding m = 0.

What is a real number?

A real number is a number that can be expressed on the number line. It includes rational numbers (fractions) and irrational numbers (such as square roots of non-perfect squares or transcendental numbers like π).

For a quadratic equation of the form ax² + bx + c = 0 to have two distinct real roots, the discriminant (b² - 4ac) must be greater than zero. In this case, we have a = 2, b = m, and c = 8.

The discriminant can be expressed as m² - 4(2)(8) = m² - 64. For two distinct real roots, we require m² - 64 > 0.

Solving this inequality, we get m ∈ (-∞, -8) ∪ (8, ∞).

However, since the original question states that m is a real number, we exclude any values of m that would result in the quadratic equation having a double root.

By analyzing the discriminant, we find that m = 0 would result in a double root. Therefore, the final answer is m ∈ (-16, 16) excluding m = 0, expressed in interval notation.

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2 10 Co = - , 2 Suppose the symmetric equations of lines l1 and 12 are y - 2 2- y = z and r = -1, 3 respectively. (a) Show that I, and l, are skew lines. (b) Find the equation of the line perpendicula

Answers

(a) The lines l1 and l2 are skew lines because they are neither parallel nor intersecting.

(b) The equation of the line perpendicular to both l1 and l2 is of the form:

x = at, y = 2 + 3t and z = 3t

(a) To determine if two lines are skew lines, we check if they are neither parallel nor intersecting.

The symmetric equation of line l1 is given by:

x = t

y - 2 = 2 - t

z = t

The symmetric equation of line l2 is given by:

x = -1 + 3s

y = s

z = 3

From the equations, we can see that the lines are neither parallel nor intersecting.

Hence, l1 and l2 are skew lines.

(b) To find the equation of the line perpendicular to both l1 and l2, we need to find the direction vectors of l1 and l2 and take their cross product.

The direction vector of l1 is given by the coefficients of t: <1, -1, 1>.

The direction vector of l2 is given by the coefficients of s: <3, 1, 0>.

Taking the cross product of these direction vectors, we have:

<1, -1, 1> × <3, 1, 0> = <1, 3, 4>.

Therefore, the equation of the line perpendicular to both l1 and l2 is of the form:

x = at

y = 2 + 3t

z = 3t

where a is a constant.

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the weights of bags of ready-to-eat salad are normally distributed with a mean of 300 grams and a standard deviation of 9 grams. what percent of the bags weigh less than 291 grams?

Answers

Approximately 15.87% of the bags weigh less than 291 grams.

we need to find the z-score first.
z-score = (x - mean) / standard deviation
Where:
x = 291 grams
mean = 300 grams
standard deviation = 9 grams
z-score = (291 - 300) / 9 = -1

Using the z-score table, we can find that the probability of getting a z-score of -1 or lower is 0.1587. This means that approximately 15.87% of the bags weigh less than 291 grams.

Therefore, the answer to the question is that approximately 15.87% of the bags weigh less than 291 grams.

To summarize, we have used the concept of z-score to find out what percent of bags of ready-to-eat salad weigh less than 291 grams, given the mean weight and standard deviation of the bags. We found that the z-score for 291 grams is -1, and using the z-score table, we found that the probability of getting a z-score of -1 or lower is 0.1587. This means that approximately 15.87% of the bags weigh less than 291 grams. Therefore, if you are looking to purchase bags of salad that weigh more than 291 grams, you may need to check the weight of the bags before making a purchase.

Approximately 15.87% of the bags of ready-to-eat salad weigh less than 291 grams, given a mean weight of 300 grams and a standard deviation of 9 grams. This information can be useful for consumers who are looking for bags of salad that weigh a certain amount.

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This is a related rates problem
A water tank, in the shape of a cone, has water draining out, where its volume is changing at a rate of -0.25 ft3/sec. Find the rate at which the level of the water is changing when the level (h) is 1

Answers

The rate at which the level of water is changing when the level (h) is 1 ft is (-0.25 * 3) / (πr₀²) ft/sec.

To solve this related rates problem, we'll need to relate the volume of the water in the tank to its height and find the rate at which the height is changing.

Given:The volume of the water in the tank is changing at a rate of -0.25 ft³/sec.

We need to find the rate at which the level (height) of the water is changing when the level is 1 ft.

Let's consider the formula for the volume of a cone:

V = (1/3)πr²h

Where:

V is the volume of the cone,

r is the radius of the cone's base, and

h is the height of the cone.

To find the rate at which the height is changing, we need to differentiate the volume equation with respect to time (t) using the chain rule:

dV/dt = (1/3)π(2rh)(dh/dt)

We know dV/dt = -0.25 ft³/sec (given) and want to find dh/dt when h = 1 ft.

Let's find the value of r in terms of h using similar triangles. Since the cone is draining, the radius and height will be related:

r/h = R/H

Where R is the radius at the top and H is the height of the cone. From similar triangles, we know that R/H is constant.

We'll assume the radius at the top of the cone is a constant value, r₀.

r₀/H = r/h

Solving for r, we get:

r = (r₀/h) * h

Substituting this value of r into the volume equation, we have:

V = (1/3)π((r₀/h) * h)²h

V = (1/3)π(r₀²h²/h³)

V = (1/3)πr₀²h/h²

Now, let's differentiate this equation with respect to time (t):

dV/dt = (1/3)πr₀²(dh/dt)/h²

Since V = (1/3)πr₀²h/h², we can rewrite the equation as:

-0.25 = (1/3)πr₀²(dh/dt)/h²

We want to find dh/dt when h = 1. Substituting h = 1 and solving for dh/dt, we have:

-0.25 = (1/3)πr₀²(dh/dt)/1²

-0.25 = (1/3)πr₀²(dh/dt)

dh/dt = (-0.25 * 3) / (πr₀²)

Therefore, the rate at which the level of water is changing when the level (h) is 1 ft is (-0.25 * 3) / (πr₀²) ft/sec.

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(a) Why is the trace of AT A equal to the sum of all az; ? In Example 3 it is 50. (b) For every rank-one matrix, why is oỉ = sum of all az;?

Answers

(a) The trace of a matrix is the sum of its diagonal elements. For a matrix A, the trace of AT A is the sum of the squared elements of A.

In Example 3, where the trace of AT A is 50, it means that the sum of the squared elements of A is 50. This is because AT A is a symmetric matrix, and its diagonal elements are the squared elements of A. Therefore, the trace of AT A is equal to the sum of all the squared elements of A.

(b) For a rank-one matrix, every column can be written as a scalar multiple of a single vector. Let's consider a rank-one matrix A with columns represented by vectors a1, a2, ..., an. The sum of all the squared elements of A can be written as a1a1T + a2a2T + ... + ananT.

Since each column can be expressed as a scalar multiple of a single vector, say a, we can rewrite the sum as aaT + aaT + ... + aaT, which is equal to n times aaT. Therefore, the sum of all the squared elements of a rank-one matrix is equal to the product of the scalar n and aaT, which is oỉ = n(aaT).

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