CALCULUS WITH APPLICATIONS
CALCULUS WITH APPLICATIONS
11th Edition
ISBN: 2818440028601
Author: Lial
Publisher: XX SUPPLY
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Chapter 7, Problem 91RE

(a)

To determine

To find: The integral values using formulas from geometry.

(b)

To determine

To find: The integral value by the fundamental calculus theorem.

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1. Abel's Theorem. The goal in this problem is to prove Abel's theorem by following a series of steps (each step must be justified). Theorem 0.1 (Abel's Theorem). If y1 and y2 are solutions of the differential equation y" + p(t) y′ + q(t) y = 0, where p and q are continuous on an open interval, then the Wronskian is given by W (¥1, v2)(t) = c exp(− [p(t) dt), where C is a constant that does not depend on t. Moreover, either W (y1, y2)(t) = 0 for every t in I or W (y1, y2)(t) = 0 for every t in I. 1. (a) From the two equations (which follow from the hypotheses), show that y" + p(t) y₁ + q(t) y₁ = 0 and y½ + p(t) y2 + q(t) y2 = 0, 2. (b) Observe that Hence, conclude that (YY2 - Y1 y2) + P(t) (y₁ Y2 - Y1 Y2) = 0. W'(y1, y2)(t) = yY2 - Y1 y2- W' + p(t) W = 0. 3. (c) Use the result from the previous step to complete the proof of the theorem.
2. Observations on the Wronskian. Suppose the functions y₁ and y2 are solutions to the differential equation p(x)y" + q(x)y' + r(x) y = 0 on an open interval I. 1. (a) Prove that if y₁ and y2 both vanish at the same point in I, then y₁ and y2 cannot form a fundamental set of solutions. 2. (b) Prove that if y₁ and y2 both attain a maximum or minimum at the same point in I, then y₁ and Y2 cannot form a fundamental set of solutions. 3. (c) show that the functions & and t² are linearly independent on the interval (−1, 1). Verify that both are solutions to the differential equation t² y″ – 2ty' + 2y = 0. Then justify why this does not contradict Abel's theorem. 4. (d) What can you conclude about the possibility that t and t² are solutions to the differential equation y" + q(x) y′ + r(x)y = 0?
Question 4 Find an equation of (a) The plane through the point (2, 0, 1) and perpendicular to the line x = y=2-t, z=3+4t. 3t, (b) The plane through the point (3, −2, 8) and parallel to the plane z = x+y. (c) The plane that contains the line x = 1+t, y = 2 − t, z = 4 - 3t and is parallel to the plane 5x + 2y + z = 1. (d) The plane that passes through the point (1,2,3) and contains the line x = 3t, y = 1+t, and z = 2-t. (e) The plane that contains the lines L₁: x = 1 + t, y = 1 − t, z = 2t and L2 : x = 2 − s, y = s, z = 2.

Chapter 7 Solutions

CALCULUS WITH APPLICATIONS

Ch. 7.1 - Prob. 2ECh. 7.1 - Prob. 3ECh. 7.1 - 4. Explain why the restriction is necessary in...Ch. 7.1 - Find the following. 5. Ch. 7.1 - Prob. 6ECh. 7.1 - Prob. 7ECh. 7.1 - Prob. 8ECh. 7.1 - Prob. 9ECh. 7.1 - Find the following. 10. Ch. 7.1 - Find the following. 11. Ch. 7.1 - Prob. 12ECh. 7.1 - Prob. 13ECh. 7.1 - Prob. 14ECh. 7.1 - Prob. 15ECh. 7.1 - Find the following. 16. Ch. 7.1 - Prob. 17ECh. 7.1 - Prob. 18ECh. 7.1 - Prob. 19ECh. 7.1 - Prob. 20ECh. 7.1 - Prob. 21ECh. 7.1 - Find the following. 22. Ch. 7.1 - Prob. 23ECh. 7.1 - Prob. 24ECh. 7.1 - Prob. 25ECh. 7.1 - Find the following. 26. Ch. 7.1 - Prob. 27ECh. 7.1 - Prob. 28ECh. 7.1 - Prob. 29ECh. 7.1 - Prob. 30ECh. 7.1 - Prob. 31ECh. 7.1 - Find the following. 32. Ch. 7.1 - Find the following. 33. Ch. 7.1 - Find the following. 34. Ch. 7.1 - Prob. 35ECh. 7.1 - Find the following. 36. Ch. 7.1 - Prob. 37ECh. 7.1 - Prob. 38ECh. 7.1 - Prob. 39ECh. 7.1 - Find the following. 40. Ch. 7.1 - Prob. 41ECh. 7.1 - Find the following. 42. Ch. 7.1 - Prob. 43ECh. 7.1 - Prob. 44ECh. 7.1 - Prob. 45ECh. 7.1 - Prob. 46ECh. 7.1 - Prob. 47ECh. 7.1 - Prob. 48ECh. 7.1 - Prob. 49ECh. 7.1 - Prob. 50ECh. 7.1 - Prob. 51ECh. 7.1 - Prob. 52ECh. 7.1 - Demand Find the demand function for each marginal...Ch. 7.1 - Prob. 54ECh. 7.1 - Demand Find the demand function for each marginal...Ch. 7.1 - Prob. 56ECh. 7.1 - Prob. 57ECh. 7.1 - 58. Profit The marginal profit of a small...Ch. 7.1 - Prob. 59ECh. 7.1 - Prob. 60ECh. 7.1 - Prob. 61ECh. 7.1 - Prob. 62ECh. 7.1 - Prob. 63ECh. 7.1 - Prob. 64ECh. 7.1 - Prob. 65ECh. 7.1 - Prob. 66ECh. 7.1 - Prob. 67ECh. 7.1 - Prob. 68ECh. 7.1 - Prob. 69ECh. 7.1 - Exercises 67–71 refer to Example 11 in this...Ch. 7.1 - Prob. 71ECh. 7.1 - Prob. 72ECh. 7.1 - Prob. 73ECh. 7.1 - 74. Rocket Science In the 1999 movie October Sky,...Ch. 7.2 - YOUR TURN 1 Find Ch. 7.2 - Prob. 2YTCh. 7.2 - Prob. 3YTCh. 7.2 - YOUR TURN 4 Find . Ch. 7.2 - Prob. 5YTCh. 7.2 - Prob. 6YTCh. 7.2 - Prob. 1WECh. 7.2 - Prob. 2WECh. 7.2 - Prob. 3WECh. 7.2 - Prob. 1ECh. 7.2 - Prob. 2ECh. 7.2 - Prob. 3ECh. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Prob. 5ECh. 7.2 - Prob. 6ECh. 7.2 - Prob. 7ECh. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Prob. 10ECh. 7.2 - Prob. 11ECh. 7.2 - Prob. 12ECh. 7.2 - Prob. 13ECh. 7.2 - Prob. 14ECh. 7.2 - Prob. 15ECh. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Prob. 17ECh. 7.2 - Prob. 18ECh. 7.2 - Prob. 19ECh. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Prob. 21ECh. 7.2 - Prob. 22ECh. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Use substitution to find each indefinite...Ch. 7.2 - Prob. 37ECh. 7.2 - Prob. 38ECh. 7.2 - Prob. 39ECh. 7.2 - Prob. 40ECh. 7.2 - Prob. 41ECh. 7.2 - 42. Profit The rate of growth of the profit (in...Ch. 7.2 - Prob. 43ECh. 7.2 - Prob. 44ECh. 7.2 - Prob. 45ECh. 7.2 - 46. Epidemic An epidemic is growing in a region...Ch. 7.3 - YOUR TURN 1 Repeat Example 1 to approximate Ch. 7.3 - Prob. 2YTCh. 7.3 - Prob. 1ECh. 7.3 - Prob. 2ECh. 7.3 - Prob. 3ECh. 7.3 - 4. Let f(x) = 1/x, x1 = 1/2, x2 = 1, x3 = 3/2, x4...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - In Exercises 5–12, approximate the area under the...Ch. 7.3 - Prob. 13ECh. 7.3 - Prob. 14ECh. 7.3 - Prob. 15ECh. 7.3 - Prob. 16ECh. 7.3 - Prob. 17ECh. 7.3 - Find the exact value of each integral using...Ch. 7.3 - Find the exact value of each integral using...Ch. 7.3 - Prob. 20ECh. 7.3 - Prob. 21ECh. 7.3 - Prob. 22ECh. 7.3 - In Exercises 24–30, estimate the area under each...Ch. 7.3 - Prob. 25ECh. 7.3 - Prob. 26ECh. 7.3 - Prob. 27ECh. 7.3 - Prob. 28ECh. 7.3 - Prob. 29ECh. 7.3 - Prob. 30ECh. 7.3 - Prob. 31ECh. 7.3 - Prob. 32ECh. 7.3 - Prob. 33ECh. 7.3 - Prob. 34ECh. 7.3 - Prob. 35ECh. 7.3 - Prob. 36ECh. 7.3 - Prob. 37ECh. 7.3 - Prob. 38ECh. 7.3 - Prob. 39ECh. 7.3 - Prob. 40ECh. 7.4 - YOUR TURN 1 Find . Ch. 7.4 - Prob. 2YTCh. 7.4 - Prob. 3YTCh. 7.4 - Prob. 4YTCh. 7.4 - Prob. 5YTCh. 7.4 - Prob. 1WECh. 7.4 - Prob. 2WECh. 7.4 - Prob. 3WECh. 7.4 - Prob. 1ECh. 7.4 - Prob. 2ECh. 7.4 - Evaluate each definite integral. 3. Ch. 7.4 - Evaluate each definite integral. 4. Ch. 7.4 - Prob. 5ECh. 7.4 - Prob. 6ECh. 7.4 - Evaluate each definite integral. 7. Ch. 7.4 - Evaluate each definite integral. 8. Ch. 7.4 - Evaluate each definite integral. 9. Ch. 7.4 - Evaluate each definite integral. 10. Ch. 7.4 - Prob. 11ECh. 7.4 - Prob. 12ECh. 7.4 - Prob. 13ECh. 7.4 - Prob. 14ECh. 7.4 - Evaluate each definite integral. 15. Ch. 7.4 - Evaluate each definite integral. 16. Ch. 7.4 - Evaluate each definite integral. 17. Ch. 7.4 - Evaluate each definite integral. 18. Ch. 7.4 - Evaluate each definite integral. 19. Ch. 7.4 - Prob. 20ECh. 7.4 - Evaluate each definite integral. 21. Ch. 7.4 - Evaluate each definite integral. 22. Ch. 7.4 - Prob. 23ECh. 7.4 - Prob. 24ECh. 7.4 - Prob. 25ECh. 7.4 - Evaluate each definite integral. 26. Ch. 7.4 - Prob. 27ECh. 7.4 - Prob. 28ECh. 7.4 - Prob. 29ECh. 7.4 - Evaluate each definite integral. 30. Ch. 7.4 - Prob. 31ECh. 7.4 - Prob. 32ECh. 7.4 - Prob. 33ECh. 7.4 - In Exercises 31–40, use the definite integral to...Ch. 7.4 - Prob. 35ECh. 7.4 - Prob. 36ECh. 7.4 - Prob. 37ECh. 7.4 - In Exercises 31–40, use the definite integral to...Ch. 7.4 - Prob. 39ECh. 7.4 - Prob. 40ECh. 7.4 - Prob. 41ECh. 7.4 - Prob. 42ECh. 7.4 - Prob. 43ECh. 7.4 - Prob. 44ECh. 7.4 - Prob. 45ECh. 7.4 - Prob. 46ECh. 7.4 - Prob. 47ECh. 7.4 - Use the Fundamental Theorem to show that the...Ch. 7.4 - Prob. 49ECh. 7.4 - Prob. 50ECh. 7.4 - Prob. 51ECh. 7.4 - Prob. 52ECh. 7.4 - Prob. 53ECh. 7.4 - Prob. 54ECh. 7.4 - Business and Economies 55. Profit Karla Harby...Ch. 7.4 - 56. Worker Efficiency A worker new to a job will...Ch. 7.4 - Prob. 57ECh. 7.4 - Prob. 58ECh. 7.4 - Prob. 59ECh. 7.4 - Prob. 60ECh. 7.4 - Prob. 61ECh. 7.4 - Prob. 62ECh. 7.4 - Prob. 63ECh. 7.4 - Prob. 64ECh. 7.4 - Prob. 65ECh. 7.4 - Prob. 66ECh. 7.4 - Prob. 67ECh. 7.4 - Prob. 68ECh. 7.4 - Prob. 69ECh. 7.4 - Prob. 70ECh. 7.4 - Prob. 71ECh. 7.4 - Prob. 72ECh. 7.5 - YOUR TURN 1 Repeat Example 1 for f(x) = 4 – x2,...Ch. 7.5 - Prob. 2YTCh. 7.5 - Prob. 3YTCh. 7.5 - Prob. 4YTCh. 7.5 - Prob. 1WECh. 7.5 - Prob. 2WECh. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Prob. 15ECh. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Prob. 17ECh. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Prob. 19ECh. 7.5 - Prob. 20ECh. 7.5 - Prob. 21ECh. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Find the area between the curves in Exercises...Ch. 7.5 - Prob. 25ECh. 7.5 - Prob. 26ECh. 7.5 - Prob. 27ECh. 7.5 - Prob. 28ECh. 7.5 - Prob. 29ECh. 7.5 - Prob. 30ECh. 7.5 - Prob. 31ECh. 7.5 - 32. Producers’Surplus Suppose the supply function...Ch. 7.5 - Prob. 33ECh. 7.5 - 34. Consumers’ Surplus Find the consumers’ surplus...Ch. 7.5 - 35. Consumers’ and Producers’ Surplus Suppose the...Ch. 7.5 - 36. Consumers’ and Producers’ Surplus Suppose the...Ch. 7.5 - Prob. 37ECh. 7.5 - Prob. 38ECh. 7.5 - Prob. 39ECh. 7.5 - Prob. 40ECh. 7.5 - Prob. 41ECh. 7.5 - Prob. 42ECh. 7.6 - YOUR TURN 1 Use the trapezoidal rule with n = 4 to...Ch. 7.6 - Prob. 2YTCh. 7.6 - Prob. 1ECh. 7.6 - Prob. 2ECh. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - In Exercises 1–10, use n = 4 to approximate the...Ch. 7.6 - Prob. 11ECh. 7.6 - Prob. 12ECh. 7.6 - Prob. 13ECh. 7.6 - Prob. 14ECh. 7.6 - Prob. 15ECh. 7.6 - Prob. 16ECh. 7.6 - Prob. 17ECh. 7.6 - Prob. 18ECh. 7.6 - Prob. 19ECh. 7.6 - Prob. 20ECh. 7.6 - Prob. 21ECh. 7.6 - Prob. 22ECh. 7.6 - Prob. 23ECh. 7.6 - Prob. 24ECh. 7.6 - Prob. 25ECh. 7.6 - Prob. 26ECh. 7.6 - Prob. 27ECh. 7.6 - Prob. 28ECh. 7.6 - Prob. 29ECh. 7.6 - Prob. 30ECh. 7.6 - Prob. 31ECh. 7.6 - Prob. 32ECh. 7.6 - Prob. 33ECh. 7.6 - Prob. 34ECh. 7.6 - Prob. 35ECh. 7 - Prob. 1RECh. 7 - Prob. 2RECh. 7 - Prob. 3RECh. 7 - Prob. 4RECh. 7 - Prob. 5RECh. 7 - Prob. 6RECh. 7 - Prob. 7RECh. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - Prob. 11RECh. 7 - Prob. 12RECh. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Prob. 16RECh. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 19RECh. 7 - Prob. 20RECh. 7 - Prob. 21RECh. 7 - Prob. 22RECh. 7 - Prob. 23RECh. 7 - Prob. 24RECh. 7 - Prob. 25RECh. 7 - Prob. 26RECh. 7 - Prob. 27RECh. 7 - Prob. 28RECh. 7 - Prob. 29RECh. 7 - Prob. 30RECh. 7 - Prob. 31RECh. 7 - Prob. 32RECh. 7 - Prob. 33RECh. 7 - Prob. 34RECh. 7 - Prob. 35RECh. 7 - Prob. 36RECh. 7 - Prob. 37RECh. 7 - Prob. 38RECh. 7 - Prob. 39RECh. 7 - Prob. 40RECh. 7 - Prob. 41RECh. 7 - Prob. 42RECh. 7 - Prob. 43RECh. 7 - Prob. 44RECh. 7 - Prob. 45RECh. 7 - Prob. 46RECh. 7 - Prob. 47RECh. 7 - Prob. 48RECh. 7 - Prob. 49RECh. 7 - Prob. 50RECh. 7 - Prob. 51RECh. 7 - Prob. 52RECh. 7 - Prob. 53RECh. 7 - Prob. 54RECh. 7 - Prob. 55RECh. 7 - Prob. 56RECh. 7 - Prob. 57RECh. 7 - Prob. 58RECh. 7 - Prob. 59RECh. 7 - Prob. 60RECh. 7 - Prob. 61RECh. 7 - Prob. 62RECh. 7 - Prob. 63RECh. 7 - Prob. 64RECh. 7 - Prob. 65RECh. 7 - Prob. 66RECh. 7 - Prob. 67RECh. 7 - Prob. 68RECh. 7 - Prob. 69RECh. 7 - Prob. 70RECh. 7 - Prob. 71RECh. 7 - Prob. 72RECh. 7 - Prob. 73RECh. 7 - Prob. 74RECh. 7 - Prob. 75RECh. 7 - Prob. 76RECh. 7 - Prob. 77RECh. 7 - Prob. 78RECh. 7 - Prob. 79RECh. 7 - Prob. 80RECh. 7 - Prob. 81RECh. 7 - Prob. 82RECh. 7 - Prob. 83RECh. 7 - Prob. 84RECh. 7 - Prob. 85RECh. 7 - Prob. 86RECh. 7 - Prob. 87RECh. 7 - Prob. 88RECh. 7 - Prob. 89RECh. 7 - Prob. 90RECh. 7 - Prob. 91RECh. 7 - Prob. 92RECh. 7 - Prob. 93RECh. 7 - Prob. 94RECh. 7 - Prob. 95RE
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