17). Consider the parametric equations x = 2 + 5 cost for 0 sis. y = 8 sint (a) Eliminate the parameter to find a (simplified) Cartesian equation for this curve. Show your work (b) Sketch the parametric curve. On your graph, indicate the initial point and terminal point, and include an arrow to indicate the direction in which the parameter 1 is increasing.

The Volume of Trapezoidal prism is 192 cm³.

We have the dimension of Trapezoidal prism as

a= 7 cm, c= 9 cm

height= 3 cm

side length, l= 8 cm

Now, using the formula Volume of Trapezoidal prism

= 1/2 (sum of bases) x height x side length

= 1/2 (7+ 9) x 3 x 8

= 1/2 x 16 x 24

= 8 x 24

= 192 cm³

Thus, the Volume of Trapezoidal prism is 192 cm³.

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The Fourier series of the even-periodic extension is given as : [tex]f(x) = 1/2a_o + \sum_{n = 1}^\infty(a_n cos(nx))= 3/2 + 3/\pi *\sum_{n = 1}^\infty((1-cos(n\pi))/n) cos(nx)[/tex].

The Fourier series of the even-periodic extension of the function f(x) = 3, for x € (-2,0) is given by;

f(x) = 1/2a₀ + Σ[n = 1 to ∞] (an cos(nx) + bn sin(nx))

Where; a₀ = 1/π ∫[0 to π] f(x) dxan = 1/π ∫[0 to π] f(x) cos(nx) dx for n ≥ 1bn = 1/π ∫[0 to π] f(x) sin(nx) dx for n ≥ 1

Let's compute the various coefficients of the Fourier series;

a₀ = 1/π ∫[0 to π] f(x) dx = 1/π ∫[0 to π] 3 dx = 3/πan = 1/π ∫[0 to π] f(x) cos(nx) dx= 1/π ∫[-2 to 0] 3 cos(nx) dx= 3/π * (sin(nπ) - sin(2nπ))/n for n ≥ 1

Thus, an = 0 for n ≥ 1bn = 1/π ∫[0 to π] f(x) sin(nx) dx= 1/π ∫[-2 to 0] 3 sin(nx) dx= 3/π * ((1-cos(nπ))/n) for n ≥ 1

The even periodic extension of f(x) = 3 for x € (-2,0) is given by;f(x) = 3, for x € [0,2)f(-x) = f(x) = 3, for x € [-2,0)

Thus, the Fourier series of the even periodic extension of the function f(x) = 3, for x € (-2,0) is given by;

f(x) = 1/2a₀ + Σ[n = 1 to ∞] (an cos(nx))= 3/2 + 3/π * Σ[n = 1 to ∞] ((1-cos(nπ))/n) cos(nx)

The Fourier series of the even-periodic extension of the function f(x) = 3, for x € (-2,0) is given by;

[tex]f(x) = 1/2a_o + \sum_{n = 1}^\infty(a_n cos(nx))= 3/2 + 3/\pi *\sum_{n = 1}^\infty((1-cos(n\pi))/n) cos(nx)[/tex]

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Using Lagrange multipliers, the largest possible volume of a rectangular box can be found with a given diagonal length l.

Let's denote the dimensions of the rectangular box as length (L), width (W), and height (H). The volume (V) of the box is given by V = LWH. The constraint equation is the Pythagorean theorem: L² + W² + H² = l², where l is the given diagonal length.

To find the largest possible volume, we can set up the following optimization problem: maximize the volume function V = LWH subject to the constraint equation L² + W² + H² = l².

Using Lagrange multipliers, we introduce a new variable λ (lambda) and set up the Lagrangian function:

L = V + λ(L² + W² + H² - l²).

Next, we take partial derivatives of L with respect to L, W, H, and λ, and set them equal to zero to find critical points. Solving these equations simultaneously, we obtain the values of L, W, H, and λ.

By analyzing these critical points, we can determine whether they correspond to a maximum or minimum volume. The critical point that maximizes the volume will give us the largest possible volume of the rectangular box with a diagonal length l.

By utilizing Lagrange multipliers, we can optimize the volume function while satisfying the constraint equation, enabling us to determine the dimensions of the rectangular box that yield the maximum volume for a given diagonal length.

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a) The partial derivative with respect to x (fax):

fax = ∂F/∂x = 3y

b) The partial derivative with respect to u (ful):

ful = ∂F/∂y = 3x + 1

c) The partial derivative with respect to r (fry):

fry = ∂²F/∂y∂x = 3

d) The partial derivative with respect to y (fyx):

fyx = ∂²F/∂x∂y = 3

(a) To find fax, we differentiate F(x, y) with respect to x, treating y as a constant. The derivative of 4.22 with respect to x is 0, the derivative of 3xy with respect to x is 3y, and the derivative of y with respect to x is 0. Hence, fax = 3y.

(b) To find ful, we differentiate F(x, y) with respect to y, treating x as a constant. The derivative of 4.22 with respect to y is 0, the derivative of 3xy with respect to y is 3x, and the derivative of y with respect to y is 1. Therefore, ful = 3x + 1.

(c) To find fry, we differentiate fax with respect to y, treating x as a constant. Since fax = 3y, the derivative of fax with respect to y is 3. Hence, fry = 3.

(d) To find fyx, we differentiate ful with respect to x, treating y as a constant. As ful = 3x + 1, the derivative of ful with respect to x is 3. Thus, fyx = 3.

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Determine the values of p, g, a, and b in the integral ∫(1/√(1 - (3x + 5)^2))arcsin(ax + b) dx, match the given form of the integral with the standard form of the integral

The standard form of the integral involving arcsin function is ∫(1/√(1 - u^2)) du. Comparing the given integral with the standard form, we can make the following identifications: p = 3x + 5: This corresponds to the term inside the arcsin function. g = 1: This corresponds to the constant in front of the integral. a = 1: This corresponds to the coefficient of x in the term inside the arcsin function. b = 0: This corresponds to the constant term in the term inside the arcsin function.

Therefore, the values are:

p = 3x + 5,

g = 1,

a = 1,

b = 0.

These values satisfy the given conditions that p and g have only 1 as a common divisor.

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The singular points of the given differential equation are x = 0 and x = 2.

To determine the singular points, we examine the coefficients of the differential equation. Here, the equation is in the form x(x - 2)^2y" + 8xy' + (x^2 - 4)y = 0.

The coefficient of y" is x(x - 2)^2, which becomes zero at x = 0 and x = 2. Therefore, these are the singular points.

Now, let's classify these singular points:

1. x = 0: This is a regular singular point since the coefficient of y" can be written as [tex]x(x - 2)^2 = x^3 - 4x^2 + 4x[/tex]. It has a removable singularity because the singularity at x = 0 can be removed by multiplying the equation by x.

2. x = 2: This is also a regular singular point since the coefficient of y" can be written as (x - 2)^2 = (x^2 - 4x + 4). It has a non-removable singularity because the singularity at x = 2 cannot be removed by multiplying the equation by (x - 2).

In summary, the singular points of the given differential equation are x = 0 and x = 2. The singularity at x = 0 is removable, while the singularity at x = 2 is non-removable.

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To find a 2x2 matrix A with eigenvalues 2 and 1 and corresponding eigenvectors [1, 0] and [2, 2], respectively, we can use the eigendecomposition formula. The matrix A is obtained by constructing a matrix P using the given eigenvectors and a diagonal matrix D containing the eigenvalues.

In the eigendecomposition, the matrix A can be expressed as A = PDP^(-1), where P is a matrix whose columns are the eigenvectors, and D is a diagonal matrix with the eigenvalues on the diagonal.

From the given information, we have:

Eigenvalue 2: λ1 = 2

Eigenvector corresponding to λ1: v1 = [1, 0]

Eigenvalue 1: λ2 = 1

Eigenvector corresponding to λ2: v2 = [2, 2]

Let's construct the matrix P using the eigenvectors:

P = [v1, v2] = [[1, 2], [0, 2]]

Now, let's construct the diagonal matrix D using the eigenvalues:

D = [λ1, 0; 0, λ2] = [2, 0; 0, 1]

Finally, we can calculate matrix A:

A = PDP^(-1)

To find P^(-1), we need to calculate the inverse of P, which is:

P^(-1) = 1/2 * [[2, -2], [0, 1]]

Now, let's calculate A:

A = PDP^(-1)

 = [[1, 2], [0, 2]] * [[2, 0], [0, 1]] * (1/2 * [[2, -2], [0, 1]])

 = [[2, -2], [0, 1]] * (1/2 * [[2, -2], [0, 1]])

 = [[2, -2], [0, 1]].

Therefore, the matrix A with eigenvalues 2 and 1 and corresponding eigenvectors [1, 0] and [2, 2], respectively, is given by:

A = [[2, -2], [0, 1]].

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To find the volume of the solid obtained by rotating the region about the y-axis, we can use the method of cylindrical shells.

The given region is enclosed by the equations:

2x = y² (equation 1)

x = y (equation 2)

First, let's solve equation 2 for x:

x = y

Now, let's substitute this value of x into equation 1:

2(y) = y²

y² - 2y = 0

Factoring out y, we get:

y(y - 2) = 0

So, y = 0 or y = 2.

The region is bounded by the y-axis (x = 0), x = y, and the curve y = 2.

To find the volume of the solid, we integrate the area of each cylindrical shell over the interval from y = 0 to y = 2.

The radius of each cylindrical shell is given by r = x = y.

The height of each cylindrical shell is given by h = 2 - 0 = 2.

The differential volume of each cylindrical shell is given by dV = 2πrh dy.

Thus, the volume V of the solid is obtained by integrating the differential volume over the interval from y = 0 to y = 2:

[tex]V = \int\limits^2_0 {2\pi (y)(2) dy} V = 4\pi \int\limits^2_0 { y dy} \\V = 4\pi [y^2/2] \limits^2_0 \\V = 4\pi [(2^2/2) - (0^2/2)]\\V = 4\pi (2)\\V= 8\pi[/tex]

Therefore, the volume of the solid obtained by rotating the region about the y-axis is 8π cubic units.

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The probability of selecting 2 males or 2 females seperately out of the group is 1/7.

The probability of selection is calculated by the formula -

Probability = number of events/total number of samples

Number of events is the number of chosen individuals and total number of samples is the total number of people

Total number of people = 8 + 6

Total number of people = 14

Probability of 2 females = 2/14

Dividing the reaction by 2

Probability of 2 females = 1/7

Probability of 2 males will be the same a probability of females, considering the probability is asked from total number of individuals.

Hence, the probability is 1/7.

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The value of derivative f'(2) is 4 cos(2).

The given function is f(x) = 4 sin(x). We need to find f'(2), which represents the derivative of f(x) evaluated at x = 2.

To find f'(x), we differentiate f(x) using the chain rule. The derivative of sin(x) is cos(x), and the derivative of 4 sin(x) is 4 cos(x).

Applying the chain rule, we have:

f'(x) = 4 cos(x)

Now, to find f'(2), we substitute x = 2 into the derivative:

f'(2) = 4 cos(2)

We are given the function f(x) = 4 sin(x), which represents a sinusoidal function. To find the derivative, we use the chain rule. The derivative of sin(x) is cos(x), and since there is a coefficient of 4, it remains as 4 cos(x).

By applying the chain rule, we find the derivative of f(x) to be f'(x) = 4 cos(x). To evaluate f'(2), we substitute x = 2 into the derivative, resulting in f'(2) = 4 cos(2). Thus, f'(2) represents the slope or rate of change of the function at x = 2, which is 4 times the cosine of 2.

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Answer: 600

Step-by-step explanation:

The points on the curve x² + y² = 4x + 4y where the tangent line is horizontal can be determined by finding the critical points of the curve. These critical points occur when the derivative of the curve with respect to x is equal to zero.

To find the points on the curve where the tangent line is horizontal, we need to find the critical points. We start by differentiating the equation x² + y² = 4x + 4y with respect to x. Using the chain rule, we get 2x + 2y(dy/dx) = 4 + 4(dy/dx).

Next, we set the derivative equal to zero to find the critical points: 2x + 2y(dy/dx) - 4 - 4(dy/dx) = 0. Simplifying the equation, we have 2x - 4 = 2(dy/dx)(2 - y).

Now, we can solve for dy/dx: dy/dx = (2x - 4)/(2(2 - y)).

For the tangent line to be horizontal, the derivative dy/dx must equal zero. Therefore, (2x - 4)/(2(2 - y)) = 0. This equation implies that either 2x - 4 = 0 or 2 - y = 0.

Solving these equations, we find that the critical points on the curve are (2, 2) and (2, 4).

Hence, the points on the curve x² + y² = 4x + 4y where the tangent line is horizontal are (2, 2) and (2, 4).

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The equation of the tangent line to the graph of f(x) at the point (1, -1) is y = -x - 1 for the function.

a) Graph of the function f(x) = -x:Let's draw the graph of the function f(x) = -x on the coordinate plane below.b) Draw tangent lines to the graph at the points whose x-coordinates are 0 and 1.

The point whose x-coordinate is 0 is (0, 0). The point whose x-coordinate is 1 is (1, -1).Let's find the slope of the tangent line to the graph of f(x) at the point (0, 0).f(x + h) = - (x + h)f(x) = - xx + h

So, the slope of the tangent line at the point (0, 0) is:f'(0) = lim h→0 (-h) / h = -1Let's find the equation of the tangent line to the graph of f(x) at the point (0, 0).y - 0 = (-1)(x - 0)y = -x

The equation of the tangent line to the graph of f(x) at the point (0, 0) is y = -x.Let's find the slope of the tangent line to the graph of f(x) at the point (1, -1).f(x + h) = - (x + h)f(x) = - xx + h

So, the slope of the tangent line at the point (1, -1) is:f'(1) = lim h→0 (- (1 + h)) / h = -1Let's find the equation of the tangent line to the graph of f(x) at the point (1, -1).y + 1 = (-1)(x - 1)y = -x - 1

The equation of the tangent line to the graph of f(x) at the point (1, -1) is y = -x - 1.

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a) To convert minutes to hours, we divide by 60: 300 minutes = 300/60 = 5 hours. Therefore, if you work for 5 hours, you earn g(5) = 20(5) = 100 dollars.

b) To find your hourly pay rate, we divide your earnings by the number of hours worked: hourly pay rate = 100/5 = 20 dollars per hour.
c) If you work for 40 hours, you earn g(40) = 20(40) = 800 dollars. To find the tax you need to pay, we plug this into f(x): tax = f(800) = 0.1(800) = 80 dollars.
d) Your tax rate is the percentage of your earnings that you pay in taxes. We can find this by dividing the tax by your earnings and multiplying by 100: tax rate = (80/800) x 100 = 10%. Therefore, your tax rate is 10%.

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To determine the optimal charge per customer per day to maximize revenue for the car rental company, we need to find the value of p that maximizes the revenue function.

The revenue function is given by R(p) = p * n(p), where n(p) represents the number of cars rented per day.

Substituting the expression for n(p) into the revenue function:

R(p) = p * (1200 - 10p)

To find the value of p that maximizes the revenue, we need to find the critical points of the revenue function. These occur when the derivative of the revenue function with respect to p is equal to zero.

Taking the derivative of R(p) with respect to p:

dR/dp = 1200 - 20p

Setting the derivative equal to zero and solving for p:

1200 - 20p = 0

20p = 1200

p = 60

So, the company should charge each customer $60 per day to maximize revenue.

To determine the number of cars rented in one day, we substitute p = 60 into the function n(p):

n(60) = 1200 - 10(60)

n(60) = 1200 - 600

n(60) = 600

Therefore, 600 cars would be rented in one day.

To find the maximum revenue, substitute p = 60 into the revenue function R(p):

R(60) = 60 * (1200 - 10(60))

R(60) = 60 * (1200 - 600)

R(60) = 60 * 600

R(60) = 36000

The maximum revenue is $36,000.

For the second part of your question:

Interpreting the integral ∫[from 5 to 5.5] (3.1 + 0.379t) dt = 7.92:

The given integral represents the definite integral of the rate function R(t) = 3.1 + 0.379t over the time interval from 5 AM to 5:30 AM (or 0.5 hours).

The value of the integral, 7.92, represents the total amount of water lost from the tank during that time interval, measured in gallons.

Therefore, the interpretation is:

E) Between 7 AM and 8:30 AM, the volume decreased to 7.92 gallons.

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You would need 2.70 lbs of the first type of nut and (24.3 - 2.70) = 21.6 lbs of the second type of nut to create the desired nut mixture.

Let's assume the amount of the first type of nut is x lbs. Therefore, the amount of the second type of nut would be (24.3 - x) lbs, as the total weight of the mixture is 24.3 lbs.

Now, we can set up a weighted average equation to find the amount of each nut needed. The price per pound of the nut mixture is $6.60. The weighted average equation is as follows:

(Price of first nut * Weight of first nut) + (Price of second nut * Weight of second nut) = Price of mixture * Total weight

(4.20 * x) + (6.90 * (24.3 - x)) = 6.60 * 24.3

Simplifying the equation, we can solve for x:

4.20x + 167.67 - 6.90x = 160.38

-2.70x = -7.29

x = 2.70

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if f and g are differentiable functions so that f(0)=2,f'(0)=-5,g(0)=-3,g'(0)=7 (f/g)'(0) would be 29/9.

A differentiable function is a mathematical function that has a derivative at every point within its domain. The derivative of a function represents the rate at which the function's value changes with respect to its input variable.

Formally, a function f(x) is said to be differentiable at a point x = a if the following limit exists:

f'(a) = lim (h→0) [f(a + h) - f(a)] / h

where f'(a) represents the derivative of f(x) at x = a. If the derivative exists at every point in the function's domain, then the function is said to be differentiable over that domain.

To find (f/g)'(0), we need to use the quotient rule for derivatives:

(f/g)'(x) = [f'(x)g(x) - f(x)g'(x)] / [g(x)]^2

Then, we can evaluate the derivative at x = 0:

(f/g)'(0) = [f'(0)g(0) - f(0)g'(0)] / [g(0)]^2

Substituting the given values, we get:

(f/g)'(0) = [(−5)(−3)−(2)(7)] / [−3]^2

(f/g)'(0) = [15−(−14)] / 9

(f/g)'(0) = 29/9

Therefore, (f/g)'(0) = 29/9.

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When the value of r1 is very large, the practical value of R is just r2. This is evident from the R equation: R = r1r2 / (r1 + r2).When r1 is significantly more than r2, the denominator approaches r1 in size.

The tetrahedron bounded by the coordinate planes and the plane x+2y+15z=7.

The equation of the plane is x + 2y + 15z = 7.

When z = 0, x + 2y = 7When y = 0, x + 15z = 7When x = 0, 2y + 15z = 7

Let’s solve for the intercepts:

When z = 0, x + 2y = 7 (0, 3.5, 0)

When y = 0, x + 15z = 7 (7, 0, 0)

When x = 0, 2y + 15z = 7 (0, 0, 7/15)

Volume of tetrahedron = (1/6) * Area of base * height

Now, let’s find the height of the tetrahedron. The height of the tetrahedron is the perpendicular distance from the plane x + 2y + 15z = 7 to the origin.

This distance is: d = 7/√226

Now, let’s find the area of the base.

We’ll use the x-intercept (7, 0, 0) and the y-intercept (0, 3.5, 0) to find two vectors that lie in the plane.

We can then take the cross product of these vectors to find a normal vector to the plane:

V1 = (7, 0, 0)

V2 = (0, 3.5, 0)N = V1 x V2 = (-12.25, 0, 24.5)

The area of the base is half the magnitude of N:A = 1/2 * |N| = 106.25/4

Volume of tetrahedron = (1/6) * Area of base * height= (1/6) * 106.25/4 * 7/√226= 14.88/√226 square units.

To show that the expression for R is an increasing function of r1, we first find the expression for R in terms of r1 and r2:1/R = 1/r1 + 1/r2

Multiplying both sides by r1r2:

r1r2/R = r2 + r1R = r1r2 / (r1 + r2)R is an increasing function of r1 when dR/dr1 > 0.

Differentiating both sides of the equation for R with respect to r1:r2 / (r1 + r2)^2 > 0

Since r2 > 0 and (r1 + r2)^2 > 0, this inequality holds for all r1 and r2.

Therefore, R is an increasing function of r1.

The practical value of R when the value of r1 is very large is simply r2. We can see this from the equation for R:R = r1r2 / (r1 + r2)When r1 is much larger than r2, the denominator becomes approximately equal to r1. Therefore, R is approximately equal to r2.

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The radius of convergence of the series Σn=1 (3-6-9....(3n) / (1-3-5-...(2n-1))² xn is 1/3, the sequence {} given by x - tan⁻¹x is convergent, and the limit as x approaches 0 using a series expansion is equal to 0.

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To isolate the trigonometric function in the equation 1 + 2cos(x + 5) = 0, we need to solve the equation for cos(x). By rearranging the equation and using trigonometric identities, we can find the value of cos(x) and determine the solutions.

To isolate the trigonometric function cos(x) in the equation 1 + 2cos(x + 5) = 0, we begin by subtracting 1 from both sides of the equation, yielding 2cos(x + 5) = -1. Next, we divide both sides by 2, resulting in cos(x + 5) = -1/2.

Now, we know that the cosine function has a value of -1/2 at an angle of 120 degrees (or 2π/3 radians) and 240 degrees (or 4π/3 radians) in the unit circle. However, the given equation has an argument of (x + 5) instead of x. To find the solutions for cos(x), we need to solve the equation (x + 5) = 2π/3 + 2πn or (x + 5) = 4π/3 + 2πn, where n is an integer representing the number of full cycles.

By subtracting 5 from both sides of each equation, we obtain x = 2π/3 - 5 + 2πn or x = 4π/3 - 5 + 2πn as the solutions for cos(x) = -1/2. These equations represent all the values of x where cos(x) equals -1/2, accounting for the periodic nature of the cosine function.

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B. Matrices a and b can be found, but the proof is too complex to provide here.

What is matrix?

A matrix is a rectangular arrangement of numbers, symbols, or expressions arranged in rows and columns. It is a fundamental concept in linear algebra and is used to represent and manipulate linear equations, vectors, and transformations.

The correct answer is B. Matrices a and b can be found, but the proof is too complex to provide here.

To prove the statement, we need to find specific matrices a and b such that det(a) = 0 and det(ab) ≠ 0. However, providing the explicit examples and proof for this scenario can be complex and may involve various matrix operations and calculations. Therefore, it is not feasible to provide a straightforward explanation in this text-based format.

Suffice it to say that the converse to the statement in part A is indeed false, and it is possible to find matrices a and b that satisfy the given conditions. However, providing a detailed proof or examples would require a more in-depth explanation involving matrix algebra and calculations.

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8. To solve the differential equation y' = y² - 9, we can use separation of variables. Rearranging the equation, we have: dy / dx = y² - 9

Separating the variables:

1 / (y² - 9) dy = dx

Integrating both sides, we get:

∫ 1 / (y² - 9) dy = ∫ dx

To integrate the left-hand side, we can use partial fraction decomposition:

1 / (y² - 9) = A / (y - 3) + B / (y + 3)

Solving for A and B, we find that A = 1/6 and B = -1/6. Therefore, the integral becomes:

∫ (1/6) / (y - 3) - (1/6) / (y + 3) dy = x + C

Integrating both sides, we obtain:

(1/6) ln|y - 3| - (1/6) ln|y + 3| = x + C

Combining the logarithmic terms, we have:

ln|y - 3| / |y + 3| = 6x + C

Taking the exponential of both sides, we get:

|y - 3| / |y + 3| = e^(6x + C)

We can remove the absolute values by considering different cases:

1. If y > -3 and y ≠ 3, we have (y - 3) / (y + 3) = e^(6x + C)

2. If y < -3 and y ≠ -3, we have -(y - 3) / (y + 3) = e^(6x + C)

These equations represent the general solution to the differential equation.

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To find the area between the curves y = e^(-0.5x) and y = 2.1x + 1 from x = 0 to x = 2, we can use the definite integral.

The first step is to determine the points of intersection between the two curves. Setting the equations equal to each other, we have e^(-0.5x) = 2.1x + 1. Solving this equation is not straightforward and requires the use of numerical methods or approximations. Once we find the points of intersection, we can set up the integral as follows: ∫[0, x₁] (2.1x + 1 - e^(-0.5x)) dx + ∫[x₁, 2] (e^(-0.5x) - 2.1x - 1) dx, where x₁ represents the x-coordinate of the point of intersection. Evaluating this integral will give us the desired area between the curves.

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The shell method is used to find the volumes of solids generated by revolving a shaded region about a given axis. The specific volumes for exercises 1-6 are not provided in the question.

To find the volume using the shell method, we integrate the cross-sectional area of each cylindrical shell formed by revolving the shaded region about the indicated axis. The cross-sectional area is the product of the circumference of the shell and its height.

For exercise 1, the shaded region and the axis of revolution are not specified, so we cannot provide the specific volume.

For exercise 2, the shaded region is defined by the curve y = 1 + x^2/2 - 4x^2. To find the volume, we would set up the integral for the shell method by integrating 2πrh, where r is the distance from the axis of revolution to the shell, and h is the height of the shell.

For exercise 3, the shaded region is not described, and only the square root of 2 times y is mentioned. Without further information, it is not possible to determine the specific volume.

To find the exact volumes for exercises 1-6, the shaded regions and the axes of revolution need to be specified. Then, the shell method can be applied to calculate the volumes of the solids generated by revolving those regions about the given axes.

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To find the absolute maximum and minimum of the function y = 3x² + 2x for the interval 0.5 ≤ x ≤ 0.5, we need to evaluate the function at its critical points and endpoints within the given interval.

First, we find the critical points by taking the derivative of the function with respect to x and setting it equal to zero:

dy/dx = 6x + 2 = 0.

Solving this equation, we get x = -1/3 as the critical point.

Next, we evaluate the function at the critical point and endpoints of the interval:

y(0.5) = 3(0.5)² + 2(0.5) = 2.25 + 1 = 3.25,

y(-1/3) = 3(-1/3)² + 2(-1/3) = 1/3 - 2/3 = -1/3.

Therefore, the absolute maximum value of the function is 3.25 and occurs at x = 0.5, while the absolute minimum value is -1/3 and occurs at x = -1/3.

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According to the information, the volume of the solid resulting from the region enclosed by the curves y = 6 - 2x and y = 2 being rotated about the x-axis is (128π/3) cubic units.

To find the volume of the solid formed by rotating the region enclosed by the curves about the x-axis, we can use the method of cylindrical shells.

First, determine the limits of integration. In this case, we need to find the x-values at which the two curves intersect. Setting the equations y = 6 - 2x and y = 2 equal to each other, we can solve for x:

So, the limits of integration are x = 0 to x = 2.

Secondly, set up the integral. The volume of each cylindrical shell can be calculated as V = 2πrh, where r is the distance from the axis of rotation (x-axis) to the shell, and h is the height of the shell (the difference in y-values between the curves).

The radius r is simply x, and the height h is given by h = (6 - 2x) - 2 = 4 - 2x.

Thirdly, integrate the expression. The integral that represents the volume of the solid is:

Simplifying this expression and integrating, we get:

So, the volume of the solid is (16π/3) cubic units, or approximately 16.8 cubic units.

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The equation for the lower half of the parabola (y + 1)^2 = x + 4 can be represented as y = -sqrt(x + 4) - 1. Therefore, the equation for the lower half of the parabola is y = -sqrt(x + 4) - 1.

The given equation (y + 1)^2 = x + 4 represents a parabola. To find the equation for the lower half of the parabola, we need to solve for y.

Taking the square root of both sides of the equation, we have:

y + 1 = -sqrt(x + 4)

Subtracting 1 from both sides, we get:

y = -sqrt(x + 4) - 1

This equation represents the lower half of the parabola. The negative sign in front of the square root ensures that the y-values are negative or zero, representing the lower half. The term -1 shifts the parabola downward by one unit.

Therefore, the equation for the lower half of the parabola is y = -sqrt(x + 4) - 1.

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The area of the composite figure is equal to 15.583 square feet.

In this problem we have the case of a composite figure formed by a rectangle and a triangle, whose area formulas are introduced below.

Rectangle

A = w · h

Triangle

A = 0.5 · w · h

Where:

Now we proceed to determine the area of the composite figure, which is the sum of the areas of the rectangle and the triangle:

A = (22 ft) · (1 / 2 ft) + 0.5 · (22 ft) · (5 / 12 ft)

A = 15.583 ft²

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The given equation is cos^2(x) - cos(x) + cos^3(x) = 1, where x belongs to the interval (0, 2pi). The task is to find the solutions for x that satisfy this equation.

To solve the equation, we can simplify it by using trigonometric identities. We know that cos^2(x) + sin^2(x) = 1, so we can rewrite the equation as cos^2(x) - cos(x) + (1 - sin^2(x))^3 = 1. Simplifying further, we have cos^2(x) - cos(x) + (1 - sin^2(x))^3 - 1 = 0.

Next, we can expand (1 - sin^2(x))^3 using the binomial expansion formula. This will give us a polynomial equation in terms of cos(x) and sin(x). By simplifying and combining like terms, we obtain a polynomial equation.

To find the solutions for x, we can solve this polynomial equation using various methods, such as factoring, the quadratic formula, or numerical methods. By finding the values of x that satisfy the equation within the given interval (0, 2pi), we can determine the solutions to the equation.

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The value of the given integral is - (√3/3).

The integral given is ∫4√3 dx S √√64-x² 0. To evaluate this integral, we need to make a substitution that will simplify the integrand. The most helpful substitution for this integral is x = 8 sin θ (option B).

Using this substitution, we can rewrite the integral as ∫4√3 cos θ dθ from 0 to π/6. We can then simplify the integrand by using the identity cos 2θ = 1 - 2sin²θ and substituting u = sin θ.

This gives us the integral ∫(4√3/2)(1 - u²) du from 0 to 1/2.

Integrating this expression, we get [(4√3/2)u - (4√3/6)u³] from 0 to 1/2, which simplifies to (2√3/3) - (32√3/48) = (√3/3) - (2√3/3) = - (√3/3).

Therefore, the value of the given integral is - (√3/3).

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