> Evaluate the integral using the indicated trigonometric substitution. Sketch and label the associated right triangle. dx x = 2 sin 0 J x4 - x2
> If a ≠0 and n is a positive integer, find the partial fraction decomposition of S(x) x"(х — а)
> If f is a quadratic function such that f(0) = 1 and is a rational function, find the value of f(0). f(x) ·dx x²(x + 1)'
> Suppose that F, G, and Q are polynomials and for all x except when Q(x) = 0. Prove that F(x) = G(x) for all x. F(x) G(x) Q(x) Q(x)
> (a) Use integration by parts to show that, for any positive integer n (b) Use part (a) to evaluate dx dx J (x² + a²)* 2a*(n – 1)(x² + a²)" -| 2n – 3 dx 2a*(n – 1) J 2а"(л — (x² + a²)ª ! dx dx and (x² + 1)² (x² + 1)'
> (a) Find the partial fraction decomposition of the function (b) Use part (a) to find / and graph f and its indefinite integral on the same screen. (c) Use the graph of f to discover the main features of the graph of / 12x – 7x – 13x² + 8 100x – 80x +
> (a) Use a computer algebra system to find the partial fraction decomposition of the function (b) Use part (a) to find / (by hand) and compare with the result of using the CAS to integrate f directly. Comment on any discrepancy. 4x – 27x² + 5x – 32 f(
> Factor x4 + 1 as a difference of squares by first adding and subtracting the same quantity. Use this factorization to evaluate /
> One method of slowing the growth of an insect population without using pesticides is to introduce into the population a number of sterile males that mate with fertile females but produce no offspring. (The photo shows a screw-worm fly, the first pest eff
> Find the volume of the resulting solid if the region under the curve / is rotated about (a) the x-axis and (b) the y-axis.
> Find the area of the region under the given curve from 1 to 2. х2 + 1 y 3x – x?
> Find the area of the region under the given curve from 1 to 2. 1 y = x' + x
> Use the substitution to transform the integrand into a rational function of t and then evaluate the integral. 12 sin 2x dx w/2 Jo 2 + cos x
> Use the substitution to transform the integrand into a rational function of t and then evaluate the integral. /2 dx /3 1 + sin x – cos x
> Use the substitution to transform the integrand into a rational function of t and then evaluate the integral. 1 dx 3 sin x – 4 cos x
> Use the substitution to transform the integrand into a rational function of t and then evaluate the integral. dx 1 - cos x
> The German mathematician Karl Weierstrass (1815–1897) noticed that the substitution t = tan(x/2) will convert any rational function of sin x and cos x into an ordinary rational function of t. (a) If / sketch a right triangle or use trig
> Evaluate the integral by completing the square and using Formula 6. 2х + 1 dx 4x? + 12х — 7
> Evaluate the integral by completing the square and using Formula 6. dx x² – 2x
> Use integration by parts, together with the techniques of this section, to evaluate the integral. x tan¯'x dx
> (a) Show that the function is a solution of the differential equation (b) Show that f(x) = ex. S(x) = E o n! f'(x) = f(x)
> Use integration by parts, together with the techniques of this section, to evaluate the integral. | In(x? – x + 2) dx In(x²
> Make a substitution to express the integrand as a rational function and then evaluate the integral. cosh t dt J sinh?t + sinh't
> Make a substitution to express the integrand as a rational function and then evaluate the integral. dx 1+ e*
> Make a substitution to express the integrand as a rational function and then evaluate the integral. e* (e* – 2)(e²* + 1) ,2x
> Make a substitution to express the integrand as a rational function and then evaluate the integral. sec?t -dt tan?t + 3 tan t + 2
> Make a substitution to express the integrand as a rational function and then evaluate the integral. sin x dx I cos'x – 3 cos x
> Make a substitution to express the integrand as a rational function and then evaluate the integral. ,2x e2х + Зе* + 2
> Make a substitution to express the integrand as a rational function and then evaluate the integral. dx
> Make a substitution to express the integrand as a rational function and then evaluate the integral. 1 - dx [Hint: Substitute u =
> Make a substitution to express the integrand as a rational function and then evaluate the integral. dx (1 + JF)²
> Show that the function is a solution of the differential equation S(x) = § (-1)*x 2n Σ (2n)! (-1)"x²" f"(x) + f(x) = 0
> (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
> (a) Find the Taylor polynomials up to degree 3 for f(x) = tan x centered at a = 0. Graph f and these polynomials on a common screen. (b) Evaluate f and these polynomials at / and / (c) Comment on how the Taylor polynomials converge to f(x).
> Make a substitution to express the integrand as a rational function and then evaluate the integral. .3 Vx? dx + 1
> Make a substitution to express the integrand as a rational function and then evaluate the integral. 1 dx Jo 1+ x
> Make a substitution to express the integrand as a rational function and then evaluate the integral. dx x² + xF 2.
> Make a substitution to express the integrand as a rational function and then evaluate the integral. dx 2 Vx + 3 + x
> Make a substitution to express the integrand as a rational function and then evaluate the integral. dx x/x - 1
> Evaluate the integral. ' + 2x² + 3x – 2 dx (x² + 2x + 2)²
> Evaluate the integral. x? — Зх + 7 (x? — 4х + 6)?
> Evaluate the integral. x* + 3x? + 1 x* + 5x + 5x
> Evaluate the integral. 5x + 7x? + x + 2 dx x(x² + 1)²
> Evaluate the integral. x* + x – 1 x³ + 1
> Use the result of Example 7 to compute arctan 0.2 correct to five decimal places.
> Evaluate the integral. x' + 2x x* + 4x² + 3
> Evaluate the integral. dx x2 + 4x + 13 Jo
> Evaluate the integral. dx x³ – 1 3
> Evaluate the integral. x - 2x? + 2x – 5 dx x* + 4x² + 3
> Evaluate the integral. x3 + 6х — 2 dx x* + 6x²
> Evaluate the integral. x' + 4x + 3 dx x* + 5x? + 4
> Evaluate the integral. x? + x + 1 dx (x² + 1)²
> Evaluate the integral. 4x dx x² + x + 1 .3 x' +
> Evaluate the integral. x? - x + 6 dx x' + 3x
> Use a power series to approximate the definite integral to six decimal places. ro.3 dx 1+ x*
> Evaluate the integral. 10 dx (x – 1)(x² + 9) .2
> Evaluate the integral. x* + 9x? + x + 2 dx x² + 9
> Evaluate the integral. dt (1? – 1)?
> Evaluate the integral. x(3 — 5х) dx J (3x – 1)(x – 1)²
> Evaluate the integral. x? 1 + x + dx Jo (x + 1)°(x + 2)
> Evaluate the integral. Зx2 + 6х + 2 dx х? + 3х + 2
> Evaluate the integral. 4y? — Ту — 12 dy Л у(у + 2)(у — 3)
> Evaluate the integral. x' + 4x? + x - 1 dx x' + x?
> Evaluate the integral. x - 4x + 1 · dx 1 x² – 3x + 2
> Evaluate the integral. 1 (x + a)(x + b)
> Use a power series to approximate the definite integral to six decimal places. c0.2 x In(1 + x²) dx
> Evaluate the integral. x - 4 dx -o?? - 5x + 6
> Evaluate the integral. 2 dx Jo 2x + 3x + 1
> Evaluate the integral. y dy (y + 4)(2y – 1)
> Evaluate the integral. 5х + 1 - dx (2х + 1)(х — 1)
> Write out the form of the partial fraction decomposition of the function (as in Example 7). Do not determine the numerical values of the coefficients. 16 + 1 (a) 16 + t³ x* + 1 (b) (x² – x)(x* + 2x² + 1)
> Write out the form of the partial fraction decomposition of the function (as in Example 7). Do not determine the numerical values of the coefficients. (a) x? – 4 (b) (x² – x + 1)(x² + 2)²
> Write out the form of the partial fraction decomposition of the function (as in Example 7). Do not determine the numerical values of the coefficients. x² – 1 x* – 2x + x? + 2x – 1 (a) (b) x³ + x + x x² – 2x + 1
> Write out the form of the partial fraction decomposition of the function (as in Example 7). Do not determine the numerical values of the coefficients. x' +1 (b) x³ – 3x² + 2x 1 (a) x? + x*
> Write out the form of the partial fraction decomposition of the function (as in Example 7). Do not determine the numerical values of the coefficients. х — 6 (a) x² + x – 6 x? (b) x? + x + 6
> Write out the form of the partial fraction decomposition of the function (as in Example 7). Do not determine the numerical values of the coefficients. 4 + x 1- x (a) (1 + 2х)(3 — х) (b) x' + x*
> Use a power series to approximate the definite integral to six decimal places. 1/2 " arctan(x/2) dx
> The functions y = ex2 and y = x2 ex2 don’t have elementary antiderivatives, but / does. Evaluate /
> Evaluate the integral. sin x cos x sin'x + cos“x
> Evaluate the integral. – sin x dx
> Evaluate the integral. sec x cos 2x sin x + sec x
> Evaluate the integral. Sx sin'x cos x dx
> Evaluate the integral. 1+ sin x dx SI 1- sin x
> Evaluate the integral. xe* dx /1 + e*
> Evaluate the integral. dx Vx² + 1
> Evaluate the integral. dx х In x — х
> Use a power series to approximate the definite integral to six decimal places. r0.3 Jo 1+ x3 dx
> Evaluate the integral. :+ arcsin. dx VI - x² 1 –
> Evaluate the integral. In(x + 1) ax x?
> Evaluate the integral. e 2x dx 1x 1+ e*
> Evaluate the integral. 1 dx 1+ 2e* — е *
> Evaluate the integral. 1 + x² dx 2
> Evaluate the integral. x? dx хв + 3x3 + 2
> Evaluate the integral. 1 dx /x + 1 + Vx
> Evaluate the integral. m/3_In(tan x) – dx Ja/4 sin x cos x
> Evaluate the integral. sin 2x dx J1+ cos“x
> Evaluate the integral. -dx I + x^^ Vx + 1
> Evaluate the indefinite integral as a power series. What is the radius of convergence? tan x dx
> Evaluate the integral. dx
> Evaluate the integral. de 1 + cos?e