Question: Find a power series representation for the
Find a power series representation for the function and determine the interval of convergence.
Transcribed Image Text:
x? S(x) x* + 16
> In a study of the spread of illicit drug use from an enthusiastic user to a population of N users, the authors model the number of expected new users by the equation where c, k and are positive constants. Evaluate this integral to express in terms of c
> As we saw in Section 3.8, a radioactive substance decays exponentially: The mass at time t is / where m(0) is the initial mass and k is a negative constant. The mean life M of an atom in the substance is For the radioactive carbon isotope, 14C, used in r
> A manufacturer of lightbulbs wants to produce bulbs that last about 700 hours but, of course, some bulbs burn out faster than others. Let F(t) be the fraction of the company’s bulbs that burn out before t hours, so F(t) always lies between 0 and 1. (a) M
> Astronomers use a technique called stellar stereography to determine the density of stars in a star cluster from the observed (two-dimensional) density that can be analyzed from a photograph. Suppose that in a spherical cluster of radius R the density of
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> Use the information and data in Exercise 6.4.33 to find the work required to propel a 1000-kg space vehicle out of the earth’s gravitational field. Exercise 6.4.33: (a) Newton’s Law of Gravitation states that two bod
> The average speed of molecules in an ideal gas is where M is the molecular weight of the gas, R is the gas constant, T is the gas temperature, and v is the molecular speed. Show that 3/2 v’e Mv³/(2RT") 4 M dv IT 2RT 8RT v = V TM
> Find the values of p for which the integral converges and evaluate the integral for those values of p. (x' In x dx
> Express the function as the sum of a power series by first using partial fractions. Find the interval of convergence. 2x 4 f(x - х? — 4х + 3
> Find the values of p for which the integral converges and evaluate the integral for those values of p. 1 x(In x)"
> Find the values of p for which the integral converges and evaluate the integral for those values of p. dx Jo
> Use the Comparison Theorem to determine whether the integral is convergent or divergent. sin'x
> Use the Comparison Theorem to determine whether the integral is convergent or divergent. 2. sec?r xVx
> Use the Comparison Theorem to determine whether the integral is convergent or divergent. arctan x dx Jo 2 + e*
> Use the Comparison Theorem to determine whether the integral is convergent or divergent. x + 1 dx /x4 — х
> Use the Comparison Theorem to determine whether the integral is convergent or divergent. 1 + sin?x dx
> Use the Comparison Theorem to determine whether the integral is convergent or divergent. dx J. x +1
> Find a power series representation for the function and determine the interval of convergence. x + a S(x). a > 0 x² + a²'
> (a) If g(x) = (sin2x)/x2 use your calculator or computer to make a table of approximate values of / for t = 2, 5, 10, 100, 1000, and 10,000. Does it appear that / is convergent? (b) Use the Comparison Theorem with f(x) = 1/x2 to show that / is convergent
> Sketch the region and find its area (if the area is finite). S = {(x, y) | –2 <x< 0, 0<y< 1//x + 2}
> Sketch the region and find its area (if the area is finite). S = {(x, y) | 0 < x < m/2, 0 < y < sec²x}
> Sketch the region and find its area (if the area is finite). s = {(x, y) | x > 0, 0 < y< xe *}
> Sketch the region and find its area (if the area is finite). s = {(x, y) | x > 1, 0 < y< 1/(x³ + x)}
> Sketch the region and find its area (if the area is finite). S = {(x, y) | x < 0, 0 < y< e*}
> Sketch the region and find its area (if the area is finite). S = {(x, y) | x > 1, 0 < y<e}
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. 1/1 e dx
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. ,1/x x³
> Find a power series representation for the function and determine the interval of convergence. x - 1 x + 2 S(x)
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. cos 0 do (a/2 sin 0
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. I'r In r dr
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. dx x? — х — 2
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. *w/2 ´tan?0 d0 Jo
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. /
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. 6. dx Jo I - xA
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. (x + 1)?
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. '14 dx Vx + 2
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent.
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. e Jo dy
> Find a power series representation for the function and determine the interval of convergence. S(x) 2x? + 1
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. 1 Je x(In x)? dx 2
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. zp z4 + 4
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. In x - dx .2
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. ye » dy Зу 12
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. L. zeª dz
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. dv 12 v² + 2v – 3
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. 1 dx x² + x
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. sine ecoso de Jo
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. L xe * dx
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. L( – 3y°) dy
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. 1 dx ах V1 + x
> Determine whether each integral is convergent or divergent. Evaluate those that are convergent. 1 dx (x – 2)½ J3
> (a) Graph the functions f(x) = 1/x1.1 and t(x) = 1/x0.9 in the viewing rectangles [0, 10] by [0, 1] and [0, 100] by [0, 1]. (b) Find the areas under the graphs of f and t from x = 1 to x = t and evaluate for t = 10, 100, 104, 106, 1010, and 1020. (c) Fin
> Find the area under the curve y = 1/x3 from x = 1 to x = t and evaluate it for t = 10, 100, and 1000. Then find the total area under this curve for x > 1.
> Which of the following integrals are improper? Why? (a) " tan x dx (b) " tan x dx dx (c) ix? (d) fe*dx 2 – x – 2
> Explain why each of the following integrals is improper. (a) f -dx 1 1 - dx Jo 1 + x³ (b) X - (c) x'e * dx cot x dx
> The curves with equations xn + yn = 1, n = 4, 6, 8, . . . , are called fat circles. Graph the curves with n = 2, 4, 6, 8, and 10 to see why. Set up an integral for the length L2k of the fat circle with n = 2k. Without attempting to evaluate this integra
> Find the length of the curve yーfp- 13 – 1 dt 1<x< 4
> (a) The figure shows a telephone wire hanging between two poles at x 2b and x b. It takes the shape of a catenary with equation y c + a cosh (x/a). Find the length of the wire. (b) Suppose two telephone poles are 50 ft apart and the length of
> Find a power series representation for the function and determine the interval of convergence. f(x) 2x + 3 4-
> The Gateway Arch in St. Louis (see the photo on page 543) was constructed using the equation for the central curve of the arch, where x and y are measured in meters and |x| y = 211.49 – 20.96 cosh 0.03291765x
> A hawk flying at 15 m/s at an altitude of 180 m accidentally drops its prey. The parabolic trajectory of the falling prey is described by the equation until it hits the ground, where y is its height above the ground and x is the horizontal distance trave
> A steady wind blows a kite due west. The kite’s height above ground from horizontal position x = 0 to x = 80 ft is given by / Find the distance traveled by the kite.
> The arc length function for a curve y = f x), where f is an increasing function, is / (a) If f has y intercept 2, find an equation for f. (b) What point on the graph off is 3 units along the curve from the y intercept? State your answer rounded to 3 de
> Find the arc length function for the curve y = sin 'x + V1 – x² with starting point (0, 1)
> (a) Find the arc length function for the curve y = In(sin x), (b) Graph both the curve and its arc length function on the same screen. 0<x< T, with starting point (7/2, 0)
> Find the arc length function for the curve y = 2x3/2 with starting point P0(1, 2).
> (a) Sketch the curve y3 = x2. (b) Use Formulas 3 and 4 to set up two integrals for the arc length from (0, 0) to (1, 1). Observe that one of these is an improper integral and evaluate both of them. (c) Find the length of the arc of this curve from (21, 1
> Sketch the curve with equation x2/3 + y2/3 = 1 and use symmetry to find its length.
> Find a power series representation for the function and determine the interval of convergence. 2 S(x) 3 — х
> Use either a computer algebra system or a table of integrals to find the exact length of the arc of the curve y = x4/3 that lies between the points (0, 0) and (1, 1). If your CAS has trouble evaluating the integral, make a substitution that changes the i
> Use either a computer algebra system or a table of integrals to find the exact length of the arc of the curve y = ex that lies between the points (0, 1) and (2, e2).
> Repeat Exercise 29 for the curve Data from Exercise 29: (a) Graph the curve / (b) Compute the lengths of inscribed polygons with n = 1, 2, and 4 sides. (Divide the interval into equal sub intervals.) Illustrate by sketching these polygons. (c) Set up a
> Use Simpson’s Rule with n = 10 to estimate the arc length of the curve. Compare your answer with the value of the integral produced by a calculator. y = e *, 0<x< 2
> Use Simpson’s Rule with n = 10 to estimate the arc length of the curve. Compare your answer with the value of the integral produced by a calculator. y = In(1 + x³), 0 <x< 5
> Use Simpson’s Rule with n = 10 to estimate the arc length of the curve. Compare your answer with the value of the integral produced by a calculator. y = Vx, 1<x< 6
> Use Simpson’s Rule with n = 10 to estimate the arc length of the curve. Compare your answer with the value of the integral produced by a calculator. y = x sin x, 0 <x< 27
> Graph the curve and visually estimate its length. Then use your calculator to find the length correct to four decimal places. y = x + cos x, 0<x<T/2
> Graph the curve and visually estimate its length. Then use your calculator to find the length correct to four decimal places. y = x² + x', 1 <x<2
> Find a power series representation for the function and determine the interval of convergence. 5 S(x) 1 – 4x?
> (a) Approximate f by a Taylor polynomial with degree n at the number a. (b) Use Taylor’s Inequality to estimate the accuracy of the approximation / when x lies in the given interval. (c) Check your result in part (b) by graphing / S
> Find the length of the arc of the curve from point P to point Q. х? — (у — 4), Р(1, 5), Q(8, 8)
> Find the length of the arc of the curve from point P to point Q. y = }x', P(-1, ), e(1,4)
> Find the exact length of the curve. y = 1- e, 0<x<2
> Find the exact length of the curve. y = In(1 – x'), 0 <x<}
> Find the exact length of the curve. у — Vx (x) y = — х2 + sin
> Find the exact length of the curve. y = x? - } In x, 1<x<2
> Find the exact length of the curve. y = 3 + cosh 2.x, 0<x<1
> Find the exact length of the curve. у — In(sec x), 0<x< п/4 y
> Find the exact length of the curve. y = In(cos x), 0 <x</3 %3|
> Find the exact length of the curve. 3 Vy (у — 3), 1<y<9
> Find a power series representation for the function and determine the interval of convergence. 1 1+ x S(x)
> Find the exact length of the curve. 1 1<y<2 8 4y² +
> Find the exact length of the curve. 1<x<2 y = 3 4x +
> Find the exact length of the curve. 36y? = (x² – 4), 2<x<3, y > 0 %3D
> Find the exact length of the curve. y = 1 + 6x2, 0<x<1 3/2
> Set up an integral that represents the length of the curve. Then use your calculator to find the length correct to four decimal places. y? = In x, -1 < y< 1
> Set up an integral that represents the length of the curve. Then use your calculator to find the length correct to four decimal places. x= Vy - y, 1< y< 4 X =
> Set up an integral that represents the length of the curve. Then use your calculator to find the length correct to four decimal places. y = xe, 0<I<2
> Use the arc length formula to find the length of the curve / Check your answer by noting that the curve is part of a circle.
> Use the arc length formula (3) to find the length of the curve y = 2x - 5, 21 < x < 3. Check your answer by noting that the curve is a line segment and calculating its length by the distance formula.
