CALCULUS AND ITS APPLICATIONS BRIEF
12th Edition
ISBN: 9780135998229
Author: BITTINGER
Publisher: PEARSON
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Chapter 4.1, Problem 49E
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A ladder 25 feet long is leaning against the wall of a building. Initially, the foot of the ladder is 7 feet from the wall. The foot of the ladder begins to slide at a rate of 2 ft/sec, causing the top of the ladder to slide down the wall. The location of the foot of the ladder, its x coordinate, at time t seconds is given by
x(t)=7+2t.
wall
y(1)
25 ft. ladder
x(1)
ground
(a) Find the formula for the location of the top of the ladder, the y coordinate, as a function of time t. The formula for y(t)= √ 25² - (7+2t)²
(b) The domain of t values for y(t) ranges from 0
(c) Calculate the average velocity of the top of the ladder on each of these time intervals (correct to three decimal places):
. (Put your cursor in the box, click and a palette will come up to help you enter your symbolic answer.)
time interval
ave velocity
[0,2]
-0.766
[6,8]
-3.225
time interval
ave velocity
-1.224
-9.798
[2,4]
[8,9]
(d) Find a time interval [a,9] so that the average velocity of the top of the ladder on this…
Total marks 15
3.
(i)
Let FRN Rm be a mapping and x = RN is a given
point. Which of the following statements are true? Construct counterex-
amples for any that are false.
(a)
If F is continuous at x then F is differentiable at x.
(b)
If F is differentiable at x then F is continuous at x.
If F is differentiable at x then F has all 1st order partial
(c)
derivatives at x.
(d) If all 1st order partial derivatives of F exist and are con-
tinuous on RN then F is differentiable at x.
[5 Marks]
(ii) Let mappings
F= (F1, F2) R³ → R² and
G=(G1, G2) R² → R²
:
be defined by
F₁ (x1, x2, x3) = x1 + x²,
G1(1, 2) = 31,
F2(x1, x2, x3) = x² + x3,
G2(1, 2)=sin(1+ y2).
By using the chain rule, calculate the Jacobian matrix of the mapping
GoF R3 R²,
i.e., JGoF(x1, x2, x3). What is JGOF(0, 0, 0)?
(iii)
[7 Marks]
Give reasons why the mapping Go F is differentiable at
(0, 0, 0) R³ and determine the derivative matrix D(GF)(0, 0, 0).
[3 Marks]
5.
(i)
Let f R2 R be defined by
f(x1, x2) = x² - 4x1x2 + 2x3.
Find all local minima of f on R².
(ii)
[10 Marks]
Give an example of a function f: R2 R which is not bounded
above and has exactly one critical point, which is a minimum. Justify briefly
Total marks 15
your answer.
[5 Marks]
Chapter 4 Solutions
CALCULUS AND ITS APPLICATIONS BRIEF
Ch. 4.1 - Find each integral. 2dxCh. 4.1 - Find each integral. 4dxCh. 4.1 - Find each integral. 3. x6dxCh. 4.1 - Prob. 4ECh. 4.1 - Find each integral. x1/4dxCh. 4.1 - Find each integral. x1/3dxCh. 4.1 - Find each integral.
7.
Ch. 4.1 - Find each integral.
8.
Ch. 4.1 - Find each integral. (2t2+5t3)dtCh. 4.1 - Find each integral.
10.
Ch. 4.1 - Find each integral.
11.
Ch. 4.1 - Prob. 12ECh. 4.1 - Find each integral. 13. x6dxCh. 4.1 - Prob. 14ECh. 4.1 - Find each integral. x5dxCh. 4.1 - Find each integral. x23dxCh. 4.1 - Find each integral. dxx4Ch. 4.1 - Find each integral. dxx2Ch. 4.1 - Find each integral.
19.
Ch. 4.1 - Find each integral.
20.
Ch. 4.1 - Find each integral.
21.
Ch. 4.1 - Find each integral.
22.
Ch. 4.1 - Find each integral. 7x23dxCh. 4.1 - Find each integral.
24.
Ch. 4.1 - Find each integral. e3xdxCh. 4.1 - Find each integral. e5xdxCh. 4.1 - Prob. 27ECh. 4.1 - Prob. 28ECh. 4.1 - Find each integral. 29. 6xx/2dxCh. 4.1 - Prob. 30ECh. 4.1 - Prob. 31ECh. 4.1 - Prob. 32ECh. 4.1 - Find each integral. 33. e3xexe4xdx (Hint: Multiply...Ch. 4.1 - Prob. 34ECh. 4.1 - Find each integral. 35. x3+4x+e6xdxCh. 4.1 - Prob. 36ECh. 4.1 - Find each integral. 37. 4x28x+3xdxCh. 4.1 - Prob. 38ECh. 4.1 - Prob. 39ECh. 4.1 - Prob. 40ECh. 4.1 - Find each integral. 41. 3x+22dxHint:Expandfirst.Ch. 4.1 - Find each integral.
42.
Ch. 4.1 - Prob. 43ECh. 4.1 - Prob. 44ECh. 4.1 - Prob. 45ECh. 4.1 - Prob. 46ECh. 4.1 - Find f such that: f(x)=x3,f(2)=9Ch. 4.1 - Find such that:
48.
Ch. 4.1 - Find such that:
49.
Ch. 4.1 - Find such that:
50.
Ch. 4.1 - Find f such that: f(x)=8x2+4x2,f(0)=6Ch. 4.1 - Find f such that: f(x)=6x24x+2,f(1)=9Ch. 4.1 - Find f such that: f(x)=5e2x,f(0)=12Ch. 4.1 - Find f such that: f(x)=3e4x,f(0)=74Ch. 4.1 - Find such that:
57.
Ch. 4.1 - Prob. 56ECh. 4.1 - Credit market debt. Since 2013, the annual rate of...Ch. 4.1 - Credit market debt. Since 2013, the annual rate of...Ch. 4.1 - Business: electric vehicle sales. The rate of...Ch. 4.1 - 62. Total cost from marginal cost. Solid Rock...Ch. 4.1 - Total profit from marginal profit. Eloy Chutes...Ch. 4.1 - Total revenue from marginal revenue. Taylor...Ch. 4.1 - Prob. 63ECh. 4.1 - Demand from marginal demand. Lessard Company...Ch. 4.1 - Prob. 65ECh. 4.1 - 67. Efficiency of a machine operator. The rate at...Ch. 4.1 - Prob. 67ECh. 4.1 - 69. Heart rate. The rate of change in Trisha’s...Ch. 4.1 - Physics: height of an object. A football player...Ch. 4.1 - Prob. 70ECh. 4.1 - Prob. 71ECh. 4.1 - Comparing rates of change. Jim is offered a job...Ch. 4.1 - Prob. 73ECh. 4.1 - Prob. 74ECh. 4.1 - Prob. 75ECh. 4.1 - Prob. 76ECh. 4.1 - Prob. 77ECh. 4.1 - Prob. 78ECh. 4.1 - Prob. 79ECh. 4.1 - Prob. 80ECh. 4.1 - Prob. 81ECh. 4.1 - Prob. 82ECh. 4.1 - Prob. 83ECh. 4.1 - Prob. 84ECh. 4.1 - Prob. 85ECh. 4.1 - Prob. 86ECh. 4.1 - Prob. 87ECh. 4.1 - Prob. 88ECh. 4.1 - Prob. 89ECh. 4.1 - Prob. 90ECh. 4.1 - Prob. 91ECh. 4.1 - Prob. 92ECh. 4.1 - Prob. 93ECh. 4.2 - Prob. 15ECh. 4.2 - Prob. 16ECh. 4.2 - Prob. 17ECh. 4.2 - Prob. 18ECh. 4.2 - Prob. 19ECh. 4.2 - Approximate the area under the graph of fx=x2+1...Ch. 4.2 - Prob. 21ECh. 4.2 - Prob. 22ECh. 4.2 - Prob. 23ECh. 4.2 - Prob. 24ECh. 4.2 - Prob. 25ECh. 4.2 - Prob. 26ECh. 4.2 - In Exercises 27–44, calculate total cost...Ch. 4.2 - In Exercises 1-8, calculate total cost...Ch. 4.2 - In Exercises 1-8, calculate total cost...Ch. 4.2 - In Exercises 1-8, calculate total cost...Ch. 4.2 - In Exercises 1-8, calculate total cost...Ch. 4.2 - In Exercises 1-8, calculate total cost...Ch. 4.2 - Prob. 33ECh. 4.2 - Prob. 34ECh. 4.2 - Prob. 35ECh. 4.2 - Prob. 36ECh. 4.2 - Prob. 37ECh. 4.2 - Prob. 38ECh. 4.2 - Prob. 39ECh. 4.2 - Prob. 40ECh. 4.2 - Prob. 41ECh. 4.2 - Prob. 42ECh. 4.2 - In Exercises 27–44, calculate total cost...Ch. 4.2 - In Exercises 27–44, calculate total cost...Ch. 4.2 - Use the following graph of y=fx to evaluate each...Ch. 4.2 - Use geometry and the following graph of f(x)=12x...Ch. 4.2 - Prob. 51ECh. 4.2 - 46. When using Riemann summation to approximate...Ch. 4.2 - Prob. 53ECh. 4.2 - Prob. 54ECh. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Prob. 3ECh. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Prob. 11ECh. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - Find the area under the given curve over the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - In each of Exercises 15-24, explain what the...Ch. 4.3 - Prob. 25ECh. 4.3 - Prob. 26ECh. 4.3 - Prob. 27ECh. 4.3 - Prob. 28ECh. 4.3 - Prob. 29ECh. 4.3 - Prob. 30ECh. 4.3 - Prob. 31ECh. 4.3 - Find the area under the graph of each function...Ch. 4.3 - In Exercises 33 and 34, determine visually whether...Ch. 4.3 - In Exercises 33 and 34, determine visually whether...Ch. 4.3 - Evaluate each integral. Then state whether the...Ch. 4.3 - Evaluate each integral. Then state whether the...Ch. 4.3 - Evaluate each integral. Then state whether the...Ch. 4.3 - Evaluate each integral. Then state whether the...Ch. 4.3 - Evaluate. 13(3t2+7)dtCh. 4.3 - Evaluate. 12(4t3+1)dtCh. 4.3 - Evaluate. 14(x1)dxCh. 4.3 - Evaluate. 18(x32)dxCh. 4.3 - Evaluate. 25(2x23x+7)dxCh. 4.3 - Prob. 44ECh. 4.3 - Prob. 45ECh. 4.3 - Prob. 46ECh. 4.3 - Prob. 47ECh. 4.3 - Prob. 48ECh. 4.3 - Prob. 49ECh. 4.3 - Prob. 50ECh. 4.3 - Prob. 51ECh. 4.3 - Prob. 52ECh. 4.3 - Prob. 53ECh. 4.3 - Prob. 54ECh. 4.3 - Evaluate. 1e(x+1x)dxCh. 4.3 - Evaluate.
56.
Ch. 4.3 - Evaluate. 022xdx(Hint:simplifyfirst.)Ch. 4.3 - Prob. 58ECh. 4.3 - Business: total profit. Pure Water Enterprises...Ch. 4.3 - Business: total revenue. Sallys Sweets finds that...Ch. 4.3 - 62. Business: increasing total cost....Ch. 4.3 - Prob. 62ECh. 4.3 - 64. Accumulated sales. Melanie’s Crafts estimates...Ch. 4.3 - 63. Accumulated sales. Raggs, Ltd., estimate that...Ch. 4.3 - Prob. 65ECh. 4.3 - Prob. 66ECh. 4.3 - Prob. 67ECh. 4.3 - Industrial Learning Curve A company is producing a...Ch. 4.3 - The rate of memorizing information initially...Ch. 4.3 - Prob. 70ECh. 4.3 - Prob. 71ECh. 4.3 - The rate of memorizing information initially...Ch. 4.3 - Find
73.
Ch. 4.3 - Prob. 74ECh. 4.3 - Prob. 75ECh. 4.3 - Prob. 76ECh. 4.3 - Prob. 77ECh. 4.3 - Find s(t) a(t)=6t+7,withv(0)=10ands(0)=20Ch. 4.3 - Prob. 79ECh. 4.3 - Prob. 80ECh. 4.3 - Distance and speed. A motorcycle accelerates at a...Ch. 4.3 - 82. Distance and speed. A car accelerates at a...Ch. 4.3 - Distance and speed. A bicyclist decelerates at a...Ch. 4.3 - 84. Distance and speed. A cheetah decelerates at a...Ch. 4.3 - Prob. 85ECh. 4.3 - Prob. 86ECh. 4.3 - Prob. 88ECh. 4.3 - Total pollution. A factory is polluting a lake in...Ch. 4.3 - Accumulated sales. Bluetape, Inc., estimates that...Ch. 4.3 - Prob. 91ECh. 4.3 - Prob. 92ECh. 4.3 - Evaluate. 416(x1)xdxCh. 4.3 - Prob. 94ECh. 4.3 - Prob. 95ECh. 4.3 - Prob. 96ECh. 4.3 - Prob. 97ECh. 4.3 - Evaluate. 49t+1tdtCh. 4.3 - Prob. 100ECh. 4.3 - Prob. 101ECh. 4.3 - Prob. 102ECh. 4.3 - Prob. 103ECh. 4.3 - Prob. 104ECh. 4.3 - Prob. 105ECh. 4.3 - Explain the error that has been made in each of...Ch. 4.3 - Evaluate. Prove that abf(x)dx=baf(x)dxCh. 4.3 - Prob. 108ECh. 4.3 - Prob. 109ECh. 4.3 - Prob. 110ECh. 4.3 - Prob. 111ECh. 4.4 - Find the area under the graph of f over [1,5]....Ch. 4.4 - Find the area under the graph of over.
1.
Ch. 4.4 - Find the area under the graph of g over [2,3]....Ch. 4.4 - Find the area under the graph of over.
3.
Ch. 4.4 - Find the area under the graph of f over [6,4]....Ch. 4.4 - Find the area under the graph of f over [6,4]....Ch. 4.4 - Find the area represented by each definite...Ch. 4.4 - Find the area represented by each definite...Ch. 4.4 - Find the area represented by each definite...Ch. 4.4 - Find the area represented by each definite...Ch. 4.4 - Find the area of the shaded region....Ch. 4.4 - Find the area of the shaded region.
12.
Ch. 4.4 - Find the area of the shaded region.
14.
Ch. 4.4 - Find the area of the shaded region.
13.
Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Prob. 24ECh. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Prob. 26ECh. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the area of the region bounded by the graphs...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Prob. 41ECh. 4.4 - Prob. 42ECh. 4.4 - Find the average function value over the given...Ch. 4.4 - Find the average function value over the given...Ch. 4.4 - Total and average daily profit. Great Green, Inc.,...Ch. 4.4 - 45. Total and average daily profit. Shylls, Inc.,...Ch. 4.4 - Prob. 47ECh. 4.4 - 47. Accumulated sales. ProArt, Inc., estimates...Ch. 4.4 - Prob. 49ECh. 4.4 - Prob. 50ECh. 4.4 - Memorizing. In a memory experiment, Alan is able...Ch. 4.4 - Prob. 52ECh. 4.4 - Results of practice. A keyboarders speed over a...Ch. 4.4 - Prob. 54ECh. 4.4 - Prob. 55ECh. 4.4 - New York temperature. For any date, the average...Ch. 4.4 - 57. Outside temperature. Suppose the temperature...Ch. 4.4 - 58. Engine emissions. The emissions of an engine...Ch. 4.4 - Prob. 59ECh. 4.4 - Prob. 60ECh. 4.4 - Prob. 61ECh. 4.4 - Prob. 62ECh. 4.4 - Prob. 63ECh. 4.4 - Prob. 64ECh. 4.4 - Prob. 67ECh. 4.4 - Prob. 68ECh. 4.4 - Prob. 69ECh. 4.4 - 65. Find the area bounded by, the x-axis, and the...Ch. 4.4 - 66. Life science: Poiseuille’s Law. The flow of...Ch. 4.4 - Prob. 72ECh. 4.4 - Prob. 73ECh. 4.4 - Prob. 74ECh. 4.4 - Prob. 76ECh. 4.4 - Find the area of the region enclosed by the given...Ch. 4.4 - Find the area of the region enclosed by the given...Ch. 4.4 - Find the area of the region enclosed by the given...Ch. 4.4 - Prob. 80ECh. 4.4 - 72. Consider the following functions:
a. Graph f...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Prob. 19ECh. 4.5 - Prob. 20ECh. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Prob. 22ECh. 4.5 - Prob. 23ECh. 4.5 - Prob. 24ECh. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Prob. 32ECh. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Evaluate. (Be sure to check by...Ch. 4.5 - Evaluate. (Be sure to check by differentiating!)...Ch. 4.5 - Prob. 43ECh. 4.5 - Prob. 44ECh. 4.5 - Prob. 45ECh. 4.5 - Prob. 46ECh. 4.5 - Evaluate.
46.
Ch. 4.5 - Evaluate. 01x(x2+1)5dxCh. 4.5 - Prob. 49ECh. 4.5 - Evaluate. 04dt1+tCh. 4.5 - Evaluate.
50.
Ch. 4.5 - Evaluate. 142x+1x2+x1dxCh. 4.5 - Prob. 53ECh. 4.5 - Prob. 54ECh. 4.5 - Prob. 55ECh. 4.5 - Prob. 56ECh. 4.5 - Evaluate.
56.
Ch. 4.5 - Evaluate.
55.
Ch. 4.5 - Evaluate.
58.
Ch. 4.5 - Evaluate. 023x2dx(1+x3)5Ch. 4.5 - Prob. 61ECh. 4.5 - Evaluate. 077x1+x23dxCh. 4.5 - Prob. 63ECh. 4.5 - Prob. 64ECh. 4.5 - Prob. 65ECh. 4.5 - Evaluate. 66. 14exxdxCh. 4.5 - Evaluate. Use the technique of Example 9. xx5dxCh. 4.5 - Evaluate. Use the technique of Example 9. 3x2x+1dxCh. 4.5 - Evaluate. Use the technique of Example 9.
81.
Ch. 4.5 - Evaluate. Use the technique of Example 9. x+3x2dx...Ch. 4.5 - Evaluate. Use the technique of Example 9....Ch. 4.5 - Evaluate. Use the technique of Example 9....Ch. 4.5 - Evaluate. Use the technique of Example 9.
85.
Ch. 4.5 - Evaluate. Use the technique of Example 9.
86.
Ch. 4.5 - Prob. 75ECh. 4.5 - Profit from marginal profit. A firm has the...Ch. 4.5 - Cost from marginal cost. Bellyachers Home Ice...Ch. 4.5 - Profit from marginal profit. Silinder Electronics...Ch. 4.5 - Prob. 79ECh. 4.5 - Prob. 80ECh. 4.5 - Prob. 85ECh. 4.5 - Evaluate.
93.
Ch. 4.5 - Prob. 87ECh. 4.5 - Evaluate.
95.
Ch. 4.5 - Evaluate. e1/tt2dtCh. 4.5 - Prob. 93ECh. 4.5 - Prob. 94ECh. 4.5 - Prob. 95ECh. 4.5 - Evaluate.
111.
Ch. 4.5 - Evaluate. exexex+exdxCh. 4.5 - Prob. 98ECh. 4.5 - 117. Is the following a true statement? Why or why...Ch. 4.5 - Prove that axdx=axIna+C. [Hint: Rewrite...Ch. 4.6 - Prob. 1ECh. 4.6 - Evaluate using integration by parts.
31.
Ch. 4.6 - Evaluate using integration by parts.
32.
Ch. 4.6 - Evaluate using integration by parts. 01xexdxCh. 4.6 - Evaluate using integration by parts.
36.
Ch. 4.6 - Evaluate using integration by parts. 08xx+1dxCh. 4.6 - Prob. 36ECh. 4.6 - Prob. 37ECh. 4.6 - Profit from marginal profit. Nevin Patio...Ch. 4.6 - 41. Drug dosage. Suppose an oral dose of a drug is...Ch. 4.6 - In Exercises 43-44, evaluate the given indefinite...Ch. 4.6 - In Exercises 43-44, evaluate the given indefinite...Ch. 4.6 - Prob. 43ECh. 4.6 - Prob. 44ECh. 4.6 - Prob. 45ECh. 4.6 - Prob. 46ECh. 4.6 - Prob. 47ECh. 4.6 - Differentiate to confirm that for any positive...Ch. 4.6 - Prob. 49ECh. 4.6 - Prob. 54ECh. 4.6 - Evaluate. tet(t+1)2dtCh. 4.6 - Prob. 56ECh. 4.6 - Prob. 57ECh. 4.6 - 57. Is the following a true statement?
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Why or...Ch. 4.6 - Compare the methods of integration by substitution...Ch. 4.6 - Prob. 64ECh. 4.6 - Occasionally, integration by parts yields an...Ch. 4.6 - Prob. 66ECh. 4.6 - Occasionally, integration by parts yields an...Ch. 4.6 - Prob. 68ECh. 4.6 - Prob. 69ECh. 4.6 - Prob. 70ECh. 4.7 - In Exercises 1–10, find Ln,Rn, and their average...Ch. 4.7 - In Exercises 1–10, find Ln,Rn, and their average...Ch. 4.7 - In Exercises 1–10, find Ln,Rn, and their average...Ch. 4.7 - In Exercises 1–10, find Ln,Rn, and their average...Ch. 4.7 - Prob. 5ECh. 4.7 - Prob. 6ECh. 4.7 - Prob. 7ECh. 4.7 - Prob. 8ECh. 4.7 - Prob. 9ECh. 4.7 - Prob. 10ECh. 4.7 - Prob. 11ECh. 4.7 - Prob. 12ECh. 4.7 - Find Mn to three decimal places for each definite...Ch. 4.7 - Find Mn to three decimal places for each definite...Ch. 4.7 - Find Mn to three decimal places for each definite...Ch. 4.7 - Prob. 16ECh. 4.7 - Prob. 17ECh. 4.7 - Prob. 18ECh. 4.7 - Prob. 19ECh. 4.7 - Prob. 20ECh. 4.7 - Prob. 21ECh. 4.7 - Prob. 22ECh. 4.7 - Prob. 23ECh. 4.7 - Prob. 24ECh. 4.7 - In Exercises 21–28, use the Trapezoidal Rule to...Ch. 4.7 - In Exercises 21–28, use the Trapezoidal Rule to...Ch. 4.7 - In Exercises 21–28, use the Trapezoidal Rule to...Ch. 4.7 - Prob. 28ECh. 4.7 - Prob. 29ECh. 4.7 - Prob. 30ECh. 4.7 - Prob. 31ECh. 4.7 - Prob. 32ECh. 4.7 - Prob. 33ECh. 4.7 - Prob. 34ECh. 4.7 - Prob. 35ECh. 4.7 - Prob. 36ECh. 4.7 - Total distance. Walt goes for a 12-min walk. His...Ch. 4.7 - Total distance. Moira drives her car for 8 min....Ch. 4.7 - Surface area. The following diagram shows the...Ch. 4.7 - Prob. 41ECh. 4.7 - Prob. 42ECh. 4.7 - Prob. 44ECh. 4.7 - Length of a curve. Using ab1+fx2dx, approximate...Ch. 4.7 - Prob. 46ECh. 4.7 - Total cost. The shape of a wall in a museum is...Ch. 4.7 - Prob. 48ECh. 4.7 - Total cost to maintain a green. The 17th green...Ch. 4.7 - Prob. 50ECh. 4.7 - Prob. 51ECh. 4.7 - Prob. 52ECh. 4.7 - Prob. 53ECh. 4.7 - Prob. 55ECh. 4.7 - Prob. 56ECh. 4.7 - Prob. 57ECh. 4.7 - Prob. 59ECh. 4.7 - Prob. 60ECh. 4 - Classify each statement as either true or...Ch. 4 - Classify each statement as either true or false....Ch. 4 - Classify each statement as either true or false....Ch. 4 - Classify each statement as either true or...Ch. 4 - Classify each statement as either true or false....Ch. 4 - Prob. 6RECh. 4 - Match each integral in column A with the...Ch. 4 - Prob. 8RECh. 4 - Prob. 9RECh. 4 - Prob. 10RECh. 4 - Prob. 11RECh. 4 - Business: total cost. The marginal cost, in...Ch. 4 - Find each antiderivative. 20x4dxCh. 4 - Find each antiderivative.
14.
Ch. 4 - Prob. 15RECh. 4 - Find the area under each curve over the Indicated...Ch. 4 - Find the area under each curve over the Indicated...Ch. 4 - Prob. 18RECh. 4 - In each case, give an interpretation of what the...Ch. 4 - Evaluate.
25. , for g as shown in the graph at...Ch. 4 - Prob. 21RECh. 4 - Prob. 22RECh. 4 - Evaluate.
22.
Ch. 4 - Prob. 24RECh. 4 - Evaluate.
24. , where
Ch. 4 - Prob. 26RECh. 4 - Decide whether abf(x)dx is positive, negative, or...Ch. 4 - Decide whether is positive, negative, or...Ch. 4 - Find the area of the region bounded by y=x2+3x+1...Ch. 4 - Find each antiderivative using substitution. Do...Ch. 4 - Find each antiderivative using substitution. Do...Ch. 4 - Prob. 32RECh. 4 - Find each antiderivative using substitution. Do...Ch. 4 - Find each antiderivative using integration by...Ch. 4 - Prob. 36RECh. 4 - Find each antiderivative using integration by...Ch. 4 - Prob. 38RECh. 4 - Prob. 39RECh. 4 - Prob. 40RECh. 4 - Prob. 41RECh. 4 - Prob. 42RECh. 4 - 43. Business: total cost. Refer to Exercise 12....Ch. 4 - 44. Find the average value of over. .
Ch. 4 - A particle starts out from the origin. Its...Ch. 4 - 46. Business: total revenue. A company estimates...Ch. 4 - Prob. 47RECh. 4 - Prob. 48RECh. 4 - Prob. 49RECh. 4 - Prob. 50RECh. 4 - Integrate using any method. t7(t8+3)11dtCh. 4 - Integrate using any method. ln(7x)dxCh. 4 - Integrate using any method. xln(8x)dxCh. 4 - Prob. 54RECh. 4 - Find each antiderivative.
55.
Ch. 4 - Prob. 56RECh. 4 - Find each antiderivative. x91ln|x|dxCh. 4 - Find each antiderivative. ln|x3x4|dxCh. 4 - Find each antiderivative. dxx(ln|x|)4Ch. 4 - Find each antiderivative. xx+33dxCh. 4 - Find each antiderivative.
61.
Ch. 4 - Use a graphing calculator to approximate the area...Ch. 4 - 1. Approximate
by computing the area of...Ch. 4 - Find the area under the curve over the indicated...Ch. 4 - Find the area under the curve over the indicated...Ch. 4 - Prob. 7TCh. 4 - Evaluate.
8.
Ch. 4 - Prob. 9TCh. 4 - Prob. 10TCh. 4 - Prob. 11TCh. 4 - Find 37f(x)dx, for f as shown in the graph.Ch. 4 - Prob. 13TCh. 4 - Find each antiderivative using substitution....Ch. 4 - Find each antiderivative using substitution....Ch. 4 - Prob. 16TCh. 4 - Find each antiderivative using integration by...Ch. 4 - Prob. 18TCh. 4 - Prob. 19TCh. 4 - Prob. 20TCh. 4 - Prob. 21TCh. 4 - Prob. 22TCh. 4 - Prob. 25TCh. 4 - Prob. 26TCh. 4 - Prob. 27TCh. 4 - Prob. 36TCh. 4 - Prob. 38TCh. 4 - Prob. 2ETECh. 4 - Prob. 3ETECh. 4 - Prob. 4ETECh. 4 - Prob. 5ETECh. 4 - Prob. 8ETE
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- Total marks 15 4. : Let f R2 R be defined by f(x1, x2) = 2x²- 8x1x2+4x+2. Find all local minima of f on R². [10 Marks] (ii) Give an example of a function f R2 R which is neither bounded below nor bounded above, and has no critical point. Justify briefly your answer. [5 Marks]arrow_forward4. Let F RNR be a mapping. (i) x ЄRN ? (ii) : What does it mean to say that F is differentiable at a point [1 Mark] In Theorem 5.4 in the Lecture Notes we proved that if F is differentiable at a point x E RN then F is continuous at x. Proof. Let (n) CRN be a sequence such that xn → x ЄERN as n → ∞. We want to show that F(xn) F(x), which means F is continuous at x. Denote hnxn - x, so that ||hn|| 0. Thus we find ||F(xn) − F(x)|| = ||F(x + hn) − F(x)|| * ||DF (x)hn + R(hn) || (**) ||DF(x)hn||+||R(hn)||| → 0, because the linear mapping DF(x) is continuous and for all large nЄ N, (***) ||R(hn) || ||R(hn) || ≤ → 0. ||hn|| (a) Explain in details why ||hn|| → 0. [3 Marks] (b) Explain the steps labelled (*), (**), (***). [6 Marks]arrow_forward4. In Theorem 5.4 in the Lecture Notes we proved that if F: RN → Rm is differentiable at x = RN then F is continuous at x. Proof. Let (xn) CRN be a sequence such that x → x Є RN as n → ∞. We want F(x), which means F is continuous at x. to show that F(xn) Denote hn xnx, so that ||hn||| 0. Thus we find ||F (xn) − F(x) || (*) ||F(x + hn) − F(x)|| = ||DF(x)hn + R(hn)|| (**) ||DF(x)hn|| + ||R(hn) || → 0, because the linear mapping DF(x) is continuous and for all large n = N, |||R(hn) || ≤ (***) ||R(hn)|| ||hn|| → 0. Explain the steps labelled (*), (**), (***) [6 Marks] (ii) Give an example of a function F: RR such that F is contin- Total marks 10 uous at x=0 but F is not differentiable at at x = 0. [4 Marks]arrow_forward
- 3. Let f R2 R be a function. (i) Explain in your own words the relationship between the existence of all partial derivatives of f and differentiability of f at a point x = R². (ii) Consider R2 → R defined by : [5 Marks] f(x1, x2) = |2x1x2|1/2 Show that af af -(0,0) = 0 and -(0, 0) = 0, Jx1 მx2 but f is not differentiable at (0,0). [10 Marks]arrow_forward(1) Write the following quadratic equation in terms of the vertex coordinates.arrow_forwardThe final answer is 8/π(sinx) + 8/3π(sin 3x)+ 8/5π(sin5x)....arrow_forward
- Keity x२ 1. (i) Identify which of the following subsets of R2 are open and which are not. (a) A = (2,4) x (1, 2), (b) B = (2,4) x {1,2}, (c) C = (2,4) x R. Provide a sketch and a brief explanation to each of your answers. [6 Marks] (ii) Give an example of a bounded set in R2 which is not open. [2 Marks] (iii) Give an example of an open set in R2 which is not bounded. [2 Marksarrow_forward2. (i) Which of the following statements are true? Construct coun- terexamples for those that are false. (a) sequence. Every bounded sequence (x(n)) nEN C RN has a convergent sub- (b) (c) (d) Every sequence (x(n)) nEN C RN has a convergent subsequence. Every convergent sequence (x(n)) nEN C RN is bounded. Every bounded sequence (x(n)) EN CRN converges. nЄN (e) If a sequence (xn)nEN C RN has a convergent subsequence, then (xn)nEN is convergent. [10 Marks] (ii) Give an example of a sequence (x(n))nEN CR2 which is located on the parabola x2 = x², contains infinitely many different points and converges to the limit x = (2,4). [5 Marks]arrow_forward2. (i) What does it mean to say that a sequence (x(n)) nEN CR2 converges to the limit x E R²? [1 Mark] (ii) Prove that if a set ECR2 is closed then every convergent sequence (x(n))nen in E has its limit in E, that is (x(n)) CE and x() x x = E. [5 Marks] (iii) which is located on the parabola x2 = = x x4, contains a subsequence that Give an example of an unbounded sequence (r(n)) nEN CR2 (2, 16) and such that x(i) converges to the limit x = (2, 16) and such that x(i) # x() for any i j. [4 Marksarrow_forward
- 1. (i) which are not. Identify which of the following subsets of R2 are open and (a) A = (1, 3) x (1,2) (b) B = (1,3) x {1,2} (c) C = AUB (ii) Provide a sketch and a brief explanation to each of your answers. [6 Marks] Give an example of a bounded set in R2 which is not open. (iii) [2 Marks] Give an example of an open set in R2 which is not bounded. [2 Marks]arrow_forward2. if limit. Recall that a sequence (x(n)) CR2 converges to the limit x = R² lim ||x(n)x|| = 0. 818 - (i) Prove that a convergent sequence (x(n)) has at most one [4 Marks] (ii) Give an example of a bounded sequence (x(n)) CR2 that has no limit and has accumulation points (1, 0) and (0, 1) [3 Marks] (iii) Give an example of a sequence (x(n))neN CR2 which is located on the hyperbola x2 1/x1, contains infinitely many different Total marks 10 points and converges to the limit x = (2, 1/2). [3 Marks]arrow_forward3. (i) Consider a mapping F: RN Rm. Explain in your own words the relationship between the existence of all partial derivatives of F and dif- ferentiability of F at a point x = RN. (ii) [3 Marks] Calculate the gradient of the following function f: R2 → R, f(x) = ||x||3, Total marks 10 where ||x|| = √√√x² + x/2. [7 Marks]arrow_forward
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