CALCULUS AND ITS APPLICATIONS BRIEF
12th Edition
ISBN: 9780135998229
Author: BITTINGER
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 26T
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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]
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]
Chapter 3 Solutions
CALCULUS AND ITS APPLICATIONS BRIEF
Ch. 3.1 - Find any relative extrema of each function. List...Ch. 3.1 - Find any relative extrema of each function. List...Ch. 3.1 - Find any relative extrema of each function. List...Ch. 3.1 - Find any relative extrema of each function. List...Ch. 3.1 - For Exercises 6984, draw a graph to match the...Ch. 3.1 - For Exercises 6984, draw a graph to match the...Ch. 3.1 - For Exercises 69–84, draw a graph to match the...Ch. 3.1 - For Exercises 6984, draw a graph to match the...Ch. 3.1 - For Exercises 69–84, draw a graph to match the...Ch. 3.1 - For Exercises 6984, draw a graph to match the...
Ch. 3.1 - For Exercises 69–84, draw a graph to match the...Ch. 3.1 - For Exercises 6984, draw a graph to match the...Ch. 3.1 - For Exercises 6984, draw a graph to match the...Ch. 3.1 - For Exercises 69–84, draw a graph to match the...Ch. 3.1 - For Exercises 6984, draw a graph to match the...Ch. 3.1 - For Exercises 6984, draw a graph to match the...Ch. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - Prob. 18ECh. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - Prob. 23ECh. 3.1 - Prob. 24ECh. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - Prob. 26ECh. 3.1 - Prob. 27ECh. 3.1 - Prob. 28ECh. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - For each function given in Exercises 17–32, find...Ch. 3.1 - For Exercises 33–46, find any relative extrema...Ch. 3.1 - Prob. 34ECh. 3.1 - Prob. 35ECh. 3.1 - Prob. 36ECh. 3.1 - For Exercises 33–46, find any relative extrema...Ch. 3.1 - Prob. 38ECh. 3.1 - Prob. 39ECh. 3.1 - Prob. 40ECh. 3.1 - Prob. 41ECh. 3.1 - Prob. 42ECh. 3.1 - For Exercises 33–46, find any relative extrema...Ch. 3.1 - Prob. 44ECh. 3.1 - For Exercises 33–46, find any relative extrema...Ch. 3.1 - Prob. 46ECh. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - Prob. 48ECh. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - Prob. 52ECh. 3.1 - Prob. 53ECh. 3.1 - Prob. 54ECh. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - Prob. 58ECh. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - Prob. 60ECh. 3.1 - Prob. 61ECh. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - For Exercises 47–64, find all relative extrema...Ch. 3.1 - Prob. 64ECh. 3.1 - Consider this graph. What makes an x-value a...Ch. 3.1 - Consider this graph Using the graph and the...Ch. 3.1 - Optimizing revenue. A hotel owner notices that she...Ch. 3.1 - Optimizing revenue. A software developer notices...Ch. 3.1 - Optimizing revenue. An artist sells y sculptures...Ch. 3.1 - Prob. 70ECh. 3.1 - Solar eclipse. On July 2, 2019, a total solar...Ch. 3.1 - Prob. 72ECh. 3.1 - In Exercises 9196, the graph of a derivative f is...Ch. 3.1 - In Exercises 91–96, the graph of a derivative is...Ch. 3.1 - In Exercises 9196, the graph of a derivative f is...Ch. 3.1 - In Exercises 9196, the graph of a derivative f is...Ch. 3.1 - In Exercises 91–96, the graph of a derivative is...Ch. 3.1 - In Exercises 9196, the graph of a derivative f is...Ch. 3.1 - Prob. 79ECh. 3.1 - Prob. 80ECh. 3.1 - Prob. 81ECh. 3.1 - Prob. 82ECh. 3.1 - Prob. 83ECh. 3.1 - Prob. 84ECh. 3.1 - Prob. 85ECh. 3.1 - Prob. 86ECh. 3.1 - Prob. 87ECh. 3.1 - Prob. 88ECh. 3.1 - Prob. 89ECh. 3.1 - Prob. 90ECh. 3.1 - Use a calculator’s absolute-value feature to graph...Ch. 3.1 - Use a calculators absolute-value feature to graph...Ch. 3.1 - Use a calculator’s absolute-value feature to graph...Ch. 3.1 - Use a calculator’s absolute-value feature to graph...Ch. 3.1 - Prob. 95ECh. 3.1 - Prob. 96ECh. 3.2 - Exercises 1–6, identify (a) the point(s) of...Ch. 3.2 - Prob. 2ECh. 3.2 - Exercises 1–6, identify (a) the point(s) of...Ch. 3.2 - Prob. 4ECh. 3.2 - Exercises 1–6, identify (a) the point(s) of...Ch. 3.2 - Prob. 6ECh. 3.2 - Prob. 7ECh. 3.2 - Prob. 8ECh. 3.2 - Prob. 9ECh. 3.2 - Prob. 10ECh. 3.2 - Prob. 11ECh. 3.2 - Prob. 12ECh. 3.2 - For each function in Exercises 7–28, (a) give...Ch. 3.2 - Prob. 14ECh. 3.2 - For each function in Exercises 7–28, (a) give...Ch. 3.2 - Prob. 16ECh. 3.2 - For each function in Exercises 7–28, (a) give...Ch. 3.2 - Prob. 23ECh. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - For Exercises 47, 56, sketch a graph that...Ch. 3.2 - Prob. 39ECh. 3.2 - Prob. 40ECh. 3.2 - Sales saturation. The Gottahavit device is...Ch. 3.2 - Prob. 44ECh. 3.2 - In each of Exercises 63 and 64, determine which...Ch. 3.2 - In each of Exercises 63 and 64, determine which...Ch. 3.2 - 65. Use calculus to prove that the relative...Ch. 3.2 - 66. Use calculus to prove that the point of...Ch. 3.2 - Prob. 51ECh. 3.2 - Prob. 52ECh. 3.2 - For Exercises 6773, assume that f is...Ch. 3.2 - For Exercises 6773, assume that f is...Ch. 3.2 - For Exercises 67–73, assume that f is...Ch. 3.2 - For Exercises 67–73, assume that f is...Ch. 3.2 - For Exercises 67–73, assume that f is...Ch. 3.2 - For Exercises 67–73, assume that f is...Ch. 3.2 - For Exercises 6773, assume that f is...Ch. 3.2 - Hours of daylight. The number of hours of daylight...Ch. 3.2 - Graph each function. Then estimate any relative...Ch. 3.2 - Graph each function. Then estimate any relative...Ch. 3.2 - Graph each function. Then estimate any relative...Ch. 3.2 - Graph each function. Then estimate any relative...Ch. 3.2 - Graph each function. Then estimate any relative...Ch. 3.2 - Graph each function. Then estimate any relative...Ch. 3.2 - Prob. 68ECh. 3.2 - Graph each function. Then estimate any relative...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Prob. 12ECh. 3.3 - Prob. 13ECh. 3.3 - Prob. 14ECh. 3.3 - Determine the vertical asymptote(s) of each...Ch. 3.3 - Prob. 16ECh. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Determine the horizontal asymptote of each...Ch. 3.3 - Prob. 29ECh. 3.3 - Prob. 30ECh. 3.3 - Determine the horizonal asymptote of each...Ch. 3.3 - Determine the horizonal asymptote of each...Ch. 3.3 - Prob. 33ECh. 3.3 - Prob. 34ECh. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Sketch the graph of each function. Indicate where...Ch. 3.3 - Prob. 53ECh. 3.3 - Prob. 54ECh. 3.3 -
59. Total cost and revenue. The total cost and...Ch. 3.3 - Cost of pollution control. Cities and companies...Ch. 3.3 - 62. Medication in the bloodstream. After an...Ch. 3.3 - Prob. 61ECh. 3.3 - Prob. 62ECh. 3.3 - Prob. 65ECh. 3.3 - 65. Using graphs and limits, explain how three...Ch. 3.3 - Prob. 71ECh. 3.3 - Prob. 72ECh. 3.3 - Prob. 73ECh. 3.3 - Prob. 74ECh. 3.3 - Prob. 75ECh. 3.3 - Prob. 76ECh. 3.3 - Prob. 77ECh. 3.3 - Graph each function using a graphing utility....Ch. 3.3 - Graph each function using a graphing...Ch. 3.3 - Prob. 80ECh. 3.3 - In Exercises 81–86, determine a rational function...Ch. 3.3 - In Exercises 8186, determine a rational function...Ch. 3.3 - In Exercises 8186, determine a rational function...Ch. 3.3 - Prob. 84ECh. 3.3 - In Exercises 8186, determine a rational function...Ch. 3.4 - Fuel economy. According to the U.S. Department of...Ch. 3.4 - Fuel economy. Using the graph in Exercise 1,...Ch. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 6ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 8ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 10ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 13ECh. 3.4 - Prob. 14ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 16ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 18ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 20ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 24ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 26ECh. 3.4 - Find the absolute maximum and minimum values of...Ch. 3.4 - Prob. 28ECh. 3.4 - Prob. 29ECh. 3.4 - Find the absolute extrema of each function, if...Ch. 3.4 - Find the absolute extrema of each function, if...Ch. 3.4 - Prob. 32ECh. 3.4 - Find the absolute extrema of each function, if...Ch. 3.4 - Prob. 34ECh. 3.4 - Prob. 35ECh. 3.4 - Prob. 36ECh. 3.4 - Find the absolute extrema of each function, if...Ch. 3.4 - Prob. 38ECh. 3.4 - Prob. 39ECh. 3.4 - Prob. 40ECh. 3.4 - Find the absolute extrema of each function, if...Ch. 3.4 - Prob. 42ECh. 3.4 - Prob. 43ECh. 3.4 - Prob. 44ECh. 3.4 - Prob. 45ECh. 3.4 - Prob. 46ECh. 3.4 - Prob. 47ECh. 3.4 - Prob. 48ECh. 3.4 - Monthly productivity. An employees monthly...Ch. 3.4 - 98. Advertising. Sound Software estimates that it...Ch. 3.4 - Investing. Gina has just invested in two funds....Ch. 3.4 - Prob. 52ECh. 3.4 - Average cost. Kennedys Brickyard calculates that...Ch. 3.4 - Prob. 54ECh. 3.4 - Prob. 55ECh. 3.4 - Prob. 56ECh. 3.4 - Minimizing cost of materials. The cost C, in...Ch. 3.4 - Prob. 58ECh. 3.4 - Prob. 61ECh. 3.4 - Prob. 62ECh. 3.4 - Prob. 63ECh. 3.4 - Prob. 64ECh. 3.4 - Prob. 65ECh. 3.4 - Prob. 66ECh. 3.4 - Prob. 67ECh. 3.4 - Prob. 68ECh. 3.4 - Prob. 69ECh. 3.4 - Prob. 70ECh. 3.4 - Prob. 71ECh. 3.4 - Prob. 72ECh. 3.4 - Prob. 73ECh. 3.4 - Prob. 74ECh. 3.5 - Prob. 1ECh. 3.5 - Prob. 2ECh. 3.5 - Prob. 3ECh. 3.5 - Prob. 4ECh. 3.5 - Prob. 5ECh. 3.5 - Prob. 6ECh. 3.5 - Prob. 7ECh. 3.5 - Prob. 8ECh. 3.5 - Prob. 9ECh. 3.5 - Prob. 10ECh. 3.5 - Prob. 11ECh. 3.5 - Prob. 12ECh. 3.5 - Prob. 13ECh. 3.5 - Prob. 14ECh. 3.5 - Maximizing area. A lifeguard needs to rope off a...Ch. 3.5 - 11. Maximizing area.. A rancher wants to enclose...Ch. 3.5 - 14. Maximizing area. Grayson Farms plans to...Ch. 3.5 - 13. Maximizing area. Hentz Industries plans to...Ch. 3.5 - Maximizing volume. From a thin piece of cardboard...Ch. 3.5 - Maximizing volume. From a 50-cm-by-50-cm sheet to...Ch. 3.5 - 19. Minimizing surface area. Mendoza Soup Company...Ch. 3.5 - Minimizing surface area. Drum Tight Containers is...Ch. 3.5 - Minimizing surface area. Open Air Waste Management...Ch. 3.5 - Minimizing surface area. Ever Green Gardening is...Ch. 3.5 - For Exercises 23-28 find the maximum profit and...Ch. 3.5 - For Exercises 23-28 find the maximum profit and...Ch. 3.5 - For Exercises 23-28 find the maximum profit and...Ch. 3.5 - For Exercises 23-28 find the maximum profit and...Ch. 3.5 - For Exercises 23-28 find the maximum profit and...Ch. 3.5 - For Exercises 23-28 find the maximum profit and...Ch. 3.5 - Maximizing profit. Riverside Appliances is...Ch. 3.5 - Maximizing profit. Raggs, Ltd., a clothing firm,...Ch. 3.5 - Maximizing profit. Gritz-Charlston is a 300-unit...Ch. 3.5 - 32. Maximizing revenue. Edwards University wants...Ch. 3.5 - Maximizing parking tickets. Oak Glen currently...Ch. 3.5 - Maximizing yield. Hood Apple Farm yields an...Ch. 3.5 - 36. Vanity license plates. According to a pricing...Ch. 3.5 - 35. Nitrogen prices. During 2001, nitrogen prices...Ch. 3.5 - Maximizing revenue. When the Marchant Theater...Ch. 3.5 - Minimizing costs. A rectangular box with a volume...Ch. 3.5 - 39. Minimizing cost. A rectangular parking area...Ch. 3.5 - Minimizing cost. A rectangular garden measuring...Ch. 3.5 - 41. Maximizing area. Bradley Publishing decides...Ch. 3.5 - Minimizing inventory costs. A sporting goods store...Ch. 3.5 - 43. Minimizing inventory costs. A pro shop in a...Ch. 3.5 - Minimizing inventory costs. A retail outlet foe...Ch. 3.5 - 45. Minimizing inventory costs. Bon Temps Surf and...Ch. 3.5 - Prob. 48ECh. 3.5 - Prob. 49ECh. 3.5 - Minimizing surface area. A closed-top cylindrical...Ch. 3.5 - Minimizing surface area. An open-top cylindrical...Ch. 3.5 - 50. Minimizing cost. Assume that the costs of the...Ch. 3.5 - Minimizing cost. Assume that the costs of the...Ch. 3.5 - Maximizing volume. The postal service places a...Ch. 3.5 - 53. Minimizing cost. A rectangular play area of ...Ch. 3.5 - Prob. 56ECh. 3.5 - Maximizing light. Repeat Exercise 56, but assume...Ch. 3.5 - Prob. 61ECh. 3.5 - Prob. 62ECh. 3.5 - Prob. 63ECh. 3.5 - Prob. 64ECh. 3.5 - Business: minimizing costs. A power line is to be...Ch. 3.5 - Prob. 66ECh. 3.5 - Prob. 67ECh. 3.5 - Prob. 70ECh. 3.5 - Business: minimizing inventory costs—a general...Ch. 3.5 - Business: minimizing inventory costs. Use the...Ch. 3.5 - Prob. 73ECh. 3.5 - Prob. 74ECh. 3.5 - In Exercises 125–128, use a spreadsheet to...Ch. 3.5 - In Exercises 125–128, use a spreadsheet to...Ch. 3.5 - In Exercises 125–128, use a spreadsheet to...Ch. 3.5 - In Exercises 125128, use a spreadsheet to maximize...Ch. 3.5 - Prob. 79ECh. 3.6 - Prob. 1ECh. 3.6 - Prob. 2ECh. 3.6 - In Exercises 1–12, find (a) y for the given x...Ch. 3.6 - Prob. 4ECh. 3.6 - In Exercises 1–12, find (a) y for the given x...Ch. 3.6 - Prob. 6ECh. 3.6 - Prob. 7ECh. 3.6 - Prob. 8ECh. 3.6 - In Exercises 1–12, find (a) y for the given x...Ch. 3.6 - Prob. 10ECh. 3.6 - Prob. 11ECh. 3.6 - Prob. 12ECh. 3.6 - Use yfxx to find a decimal approximation of each...Ch. 3.6 - Prob. 14ECh. 3.6 - Prob. 15ECh. 3.6 - Prob. 16ECh. 3.6 - Use yfxx to find a decimal approximation of each...Ch. 3.6 - Prob. 18ECh. 3.6 - Marginal revenue, cost, and profit. Let...Ch. 3.6 - Prob. 26ECh. 3.6 - Prob. 27ECh. 3.6 - Marginal cost. Suppose the monthly cost, in...Ch. 3.6 - Marginal revenue. Pierce Manufacturing determines...Ch. 3.6 - Prob. 30ECh. 3.6 - Marginal revenue. Solano Carriers finds that its...Ch. 3.6 - Prob. 32ECh. 3.6 - Sales. Let N(x) be the number of computers sold...Ch. 3.6 - Prob. 34ECh. 3.6 - For Exercise 11-16 assume that are in dollars and...Ch. 3.6 - For Exercise 11-16 assume that are in dollars and...Ch. 3.6 - For Exercises 35–40, assume that CxandRx are in...Ch. 3.6 - Prob. 38ECh. 3.6 - For Exercises 35–40, assume that CxandRx are in...Ch. 3.6 - Prob. 40ECh. 3.6 - Marginal supply. The supply S. of a new rollerball...Ch. 3.6 - Prob. 42ECh. 3.6 - Prob. 43ECh. 3.6 - Prob. 44ECh. 3.6 - 19. Marginal productivity. An employee’s monthly...Ch. 3.6 - 20. Supply. A supply function for a certain...Ch. 3.6 - Prob. 47ECh. 3.6 - Prob. 48ECh. 3.6 - Prob. 49ECh. 3.6 - Marginal tax rate. Businesses and individuals are...Ch. 3.6 - Prob. 52ECh. 3.6 - Prob. 57ECh. 3.6 - Medical dosage. The function N(t)=0.8t+10005t+4...Ch. 3.6 - Prob. 62ECh. 3.6 - Prob. 63ECh. 3.6 - Prob. 64ECh. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - For the demand function given in each of Exercises...Ch. 3.7 - Prob. 11ECh. 3.7 - Prob. 12ECh. 3.7 - Prob. 15ECh. 3.7 - 14. Demand for tomato plants. Sunshine Gardens...Ch. 3.7 - 15. Business. Tipton Industries determines that...Ch. 3.7 - Economics: constant elasticity curve. a. Find the...Ch. 3.7 - Prob. 23ECh. 3.7 - Prob. 24ECh. 3.8 - Differentiate implicitly to find dy/dx. 1....Ch. 3.8 - Prob. 2ECh. 3.8 - Prob. 3ECh. 3.8 - Prob. 4ECh. 3.8 - Prob. 5ECh. 3.8 - Prob. 6ECh. 3.8 - Prob. 7ECh. 3.8 - Differentiate implicitly to find dy/dx. 8....Ch. 3.8 - Prob. 9ECh. 3.8 - Prob. 10ECh. 3.8 - Prob. 11ECh. 3.8 - Prob. 12ECh. 3.8 - Prob. 13ECh. 3.8 - Differentiate implicitly to find dy/dx. 14....Ch. 3.8 - Prob. 15ECh. 3.8 - Prob. 16ECh. 3.8 - Prob. 17ECh. 3.8 - Prob. 18ECh. 3.8 - Prob. 19ECh. 3.8 - Prob. 20ECh. 3.8 - Prob. 21ECh. 3.8 - Prob. 22ECh. 3.8 - Prob. 23ECh. 3.8 - Prob. 24ECh. 3.8 - Prob. 25ECh. 3.8 - Prob. 26ECh. 3.8 - Differentiate implicitly to find dy/dx. Then find...Ch. 3.8 - Prob. 28ECh. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - For each demand equation in Exercises 23-30,...Ch. 3.8 - Prob. 37ECh. 3.8 - Prob. 38ECh. 3.8 - Prob. 39ECh. 3.8 - Prob. 40ECh. 3.8 - Prob. 41ECh. 3.8 - Prob. 42ECh. 3.8 - Prob. 43ECh. 3.8 - Prob. 44ECh. 3.8 - Prob. 45ECh. 3.8 - Prob. 46ECh. 3.8 - Prob. 47ECh. 3.8 - Prob. 48ECh. 3.8 - Prob. 49ECh. 3.8 - Prob. 50ECh. 3.8 - Prob. 51ECh. 3.8 - Prob. 52ECh. 3.8 - Prob. 53ECh. 3.8 - Prob. 54ECh. 3.8 - Prob. 55ECh. 3.8 - Prob. 56ECh. 3.8 - Prob. 61ECh. 3.8 - Prob. 62ECh. 3.8 - Prob. 63ECh. 3.8 - Prob. 64ECh. 3.8 - Prob. 66ECh. 3.8 - Differentiate implicitly to findd2y/dx2. 69....Ch. 3.8 - Prob. 70ECh. 3.8 - Prob. 72ECh. 3.8 - Graph each of the following equations. Equations...Ch. 3.8 - Graph each of the following equations. Equations...Ch. 3.9 - Prob. 1ECh. 3.9 - Prob. 2ECh. 3.9 - Prob. 3ECh. 3.9 - Prob. 4ECh. 3.9 - Prob. 5ECh. 3.9 - Prob. 6ECh. 3.9 - Prob. 7ECh. 3.9 - Prob. 8ECh. 3.9 - Prob. 9ECh. 3.9 - Prob. 10ECh. 3.9 - Prob. 11ECh. 3.9 - Prob. 12ECh. 3.9 - Prob. 13ECh. 3.9 - Prob. 14ECh. 3.9 - Prob. 15ECh. 3.9 - Prob. 16ECh. 3.9 - Prob. 17ECh. 3.9 - Prob. 18ECh. 3.9 - Prob. 19ECh. 3.9 - Prob. 20ECh. 3.9 - Prob. 21ECh. 3.9 - Prob. 22ECh. 3.9 - Prob. 23ECh. 3.9 - Prob. 24ECh. 3.9 - Prob. 25ECh. 3.9 - Prob. 26ECh. 3.9 - Prob. 27ECh. 3.9 - Prob. 28ECh. 3.9 - Prob. 29ECh. 3.9 - Prob. 30ECh. 3.9 - Prob. 31ECh. 3.9 - Prob. 32ECh. 3.9 - Rates of change of total revenue, cost, and...Ch. 3.9 - Prob. 34ECh. 3.9 - Prob. 35ECh. 3.9 - Prob. 36ECh. 3.9 - Prob. 37ECh. 3.9 - Prob. 41ECh. 3.9 - Rate of change of a healing wound. The area of a...Ch. 3.9 - Two cars start from the same point at the same...Ch. 3 - Prob. 1RECh. 3 - Prob. 2RECh. 3 - Prob. 3RECh. 3 - Prob. 4RECh. 3 - Prob. 5RECh. 3 - Prob. 6RECh. 3 - Prob. 7RECh. 3 - Prob. 8RECh. 3 - Prob. 9RECh. 3 - Prob. 10RECh. 3 - Prob. 11RECh. 3 - Prob. 12RECh. 3 - Prob. 14RECh. 3 - Prob. 15RECh. 3 - Prob. 16RECh. 3 - Prob. 17RECh. 3 - Prob. 18RECh. 3 - Prob. 19RECh. 3 - Prob. 20RECh. 3 - Prob. 21RECh. 3 - Prob. 22RECh. 3 - Prob. 23RECh. 3 - Prob. 24RECh. 3 - Prob. 26RECh. 3 - Prob. 27RECh. 3 - Prob. 29RECh. 3 - Prob. 30RECh. 3 - Prob. 32RECh. 3 - Prob. 38RECh. 3 - Prob. 39RECh. 3 - Prob. 40RECh. 3 - Prob. 41RECh. 3 - Prob. 42RECh. 3 - Prob. 43RECh. 3 - Prob. 44RECh. 3 - Prob. 45RECh. 3 - Prob. 52RECh. 3 - Prob. 60RECh. 3 - Prob. 62RECh. 3 - Prob. 63RECh. 3 - Use a calculator to estimate the relative extrema...Ch. 3 - Use a calculator to estimate the relative extrema...Ch. 3 - Use a calculator to estimate the relative extrema...Ch. 3 - Prob. 68RECh. 3 - Find all relative minimum or maximum values as...Ch. 3 - Prob. 2TCh. 3 - Find all relative minimum or maximum values as...Ch. 3 - Find all relative minimum or maximum values as...Ch. 3 - Sketch a graph of each function. List any extrema,...Ch. 3 - Sketch a graph of each function. List any extrema,...Ch. 3 - Prob. 7TCh. 3 - Sketch a graph of each function. List any extrema,...Ch. 3 - Prob. 9TCh. 3 - Sketch a graph of each function. List any extrema,...Ch. 3 - Prob. 11TCh. 3 - Prob. 12TCh. 3 - Prob. 13TCh. 3 - Find the absolute maximum and minimum and minimum...Ch. 3 - Find the absolute maximum and minimum and minimum...Ch. 3 - Find the absolute maximum and minimum and minimum...Ch. 3 - Find the absolute maximum and minimum and minimum...Ch. 3 - Find the absolute maximum and minimum and minimum...Ch. 3 - Prob. 19TCh. 3 - Prob. 20TCh. 3 - Prob. 21TCh. 3 - Prob. 23TCh. 3 - Prob. 24TCh. 3 - 25. .
Ch. 3 - Approximate50usingyf(x)x.Ch. 3 - 27.
a. Find dy.
b. .
Ch. 3 - 28. Economics: elasticity of demand. Consider the...Ch. 3 - Differentiate the following implicitly to find...Ch. 3 - Prob. 34TCh. 3 - Prob. 35TCh. 3 - Estimate any extrema of the function given by...Ch. 3 - Prob. 37TCh. 3 - Prob. 38TCh. 3 - Prob. 39TCh. 3 - For Exercises 1–3, do the following.
Graph the...Ch. 3 - For Exercises 13, do the following. Graph the...Ch. 3 - For Exercises 13, do the following. Graph the...Ch. 3 - Prob. 4ETECh. 3 - Prob. 5ETECh. 3 - 6. The table below lists data regarding the...Ch. 3 - Prob. 7ETE
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- 4. 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_forward3. 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_forwardKeity 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_forward
- 2. (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_forward1. (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_forward
- 2. 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_forward1. (i) (ii) which are not. What does it mean to say that a set ECR2 is closed? [1 Mark] Identify which of the following subsets of R2 are closed and (a) A = [-1, 1] × (1, 3) (b) B = [-1, 1] x {1,3} (c) C = {(1/n², 1/n2) ER2 | n EN} Provide a sketch and a brief explanation to each of your answers. [6 Marks] (iii) Give an example of a closed set which does not have interior points. [3 Marks]arrow_forward
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