Single Variable Calculus: Early Transcendentals
Single Variable Calculus: Early Transcendentals
8th Edition
ISBN: 9781305270336
Author: James Stewart
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 1RCC

(a) Draw two typical curves y = f(x) and y = g(x), where f(x) ≥ g(x) for axb. Show how to approximate the area between these curves by a Riemann sum and sketch the corresponding approximating rectangles. Then write an expression for the exact area.

(b) Explain how the situation changes if the curves have equations x = f(y) and x = g(y), where f(y) ≥ g(y) for cyd.

(a)

Expert Solution
Check Mark
To determine

To Draw: the two typical curves y=f(x) and y=g(x).

To define: A Riemann sum that approximates the area between the two typical curves with drawing of the corresponding approximating rectangles and exact area between the two typical curves and the expression for the exact area.

Explanation of Solution

Consider the two curves y=f(x) and y=g(x).

Here, the top curve function is f(x) and the bottom curve function is g(x).

Assume f and g are continuous function and f(x)g(x) for axb.

Here, the lower limit is a and the upper limit is b.

Show the approximate ith strip rectangle with base Δx and height f(xi*)g(xi*) in the region between a and b.

Sketch the two typical curves y=f(x) and y=g(x) as shown in Figure 1.

Single Variable Calculus: Early Transcendentals, Chapter 6, Problem 1RCC , additional homework tip  1

Refer to figure 1.

The two typical curves y=f(x) and y=g(x) showing the approximate ith strip rectangle is drawn.

The expression for the exact area is A=limni=1n[f(xi*)g(xi*)]Δx.

Divide the area between the two typical curves into n strips of equal width and take the entire sample points to be right endpoints, in which xi* as xi. Hence the Riemann sum is

i=1n[f(xi*)g(xi*)]Δx

Sketch thecorresponding approximating rectangles as shown in Figure 2.

Single Variable Calculus: Early Transcendentals, Chapter 6, Problem 1RCC , additional homework tip  2

The better and better approximation occurs in n. Hencethe exact areaA, between the two typical curves is the sum of the areas of the corresponding approximating rectangles as shown below.

A=limni=1n[f(xi*)g(xi*)]Δx

Thus, the Riemann sum with the sketch of corresponding approximating rectangles and the exact area between the two typical curves shown.

Therefore, the approximation of the area between the two typical curves using Riemann sum with the sketch of the corresponding approximating rectangles and the sum of the areas corresponding approximating rectangles is the exact area.

(b)

Expert Solution
Check Mark
To determine

To Draw: The two typical curves with the changing the situation as x=f(y) and x=g(y).

To define: The situation if the curves changes from y=f(x) and y=g(x) to x=f(y) and x=g(y) the expression for the exact area.

The expression for the exact area is A=cd[f(y)g(y)]dy.

Explanation of Solution

Consider the two curves x=f(y) and x=g(y).

Here, the right curve function is f(y) and the left curve function is g(y).

Assume f and g are continuous function and f(y)g(y) for cyd.

Here, the bottom limit is c and the top limit is d.

Sketch the two typical curves x=f(y) and x=g(y) is shown in Figure 3.

Single Variable Calculus: Early Transcendentals, Chapter 6, Problem 1RCC , additional homework tip  3

Thus, the two typical curves y=f(x) and y=g(x) are drawn.

Normally the height calculated from the top function minus bottom one and integrating from left to right. Instead of normal calculation, use “right minus left” and integrating from bottom to top. Therefore the exact area, A written as

A=cd[f(y)g(y)]dy

Therefore, the changes of the situation if the curves have equations x=f(y) and x=g(y) is explained.

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Chapter 6 Solutions

Single Variable Calculus: Early Transcendentals

Ch. 6.1 - Prob. 11ECh. 6.1 - Sketch the region enclosed by the given curves....Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Prob. 18ECh. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Prob. 20ECh. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Prob. 23ECh. 6.1 - Prob. 24ECh. 6.1 - Prob. 25ECh. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Prob. 29ECh. 6.1 - Sketch the region enclosed by the given curves and...Ch. 6.1 - Prob. 31ECh. 6.1 - Prob. 32ECh. 6.1 - Prob. 33ECh. 6.1 - Use calculus to find the area of the triangle with...Ch. 6.1 - Evaluate the integral and interpret it as the area...Ch. 6.1 - Prob. 36ECh. 6.1 - Prob. 37ECh. 6.1 - Prob. 38ECh. 6.1 - Prob. 39ECh. 6.1 - Use a graph to find approximate x-coordinates of...Ch. 6.1 - Prob. 41ECh. 6.1 - Prob. 42ECh. 6.1 - Prob. 43ECh. 6.1 - Prob. 44ECh. 6.1 - Sketch the region in the xy-plane defined by the...Ch. 6.1 - Prob. 47ECh. 6.1 - The widths (in meters) of a kidney-shaped swimming...Ch. 6.1 - A cross-section of an airplane wing is shown....Ch. 6.1 - If the birth rate of a population is b(t) =...Ch. 6.1 - In Example 5, we modeled a measles pathogenesis...Ch. 6.1 - Prob. 52ECh. 6.1 - Two cars, A and B, start side by side and...Ch. 6.1 - Prob. 54ECh. 6.1 - Prob. 55ECh. 6.1 - Find the area of the region bounded by the...Ch. 6.1 - Prob. 57ECh. 6.1 - Prob. 58ECh. 6.1 - Find the values of c such that the area of the...Ch. 6.1 - Prob. 60ECh. 6.1 - Prob. 61ECh. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Prob. 13ECh. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Find the volume of the solid obtained by rotating...Ch. 6.2 - Refer to the figure and find the volume generated...Ch. 6.2 - Refer to the figure and find the volume generated...Ch. 6.2 - Prob. 21ECh. 6.2 - Refer to the figure and find the volume generated...Ch. 6.2 - Prob. 23ECh. 6.2 - Prob. 24ECh. 6.2 - Refer to the figure and find the volume generated...Ch. 6.2 - Refer to the figure and find the volume generated...Ch. 6.2 - Refer to the figure and find the volume generated...Ch. 6.2 - Refer to the figure and find the volume generated...Ch. 6.2 - Prob. 29ECh. 6.2 - Prob. 30ECh. 6.2 - Prob. 31ECh. 6.2 - Prob. 32ECh. 6.2 - Prob. 33ECh. 6.2 - Prob. 34ECh. 6.2 - Prob. 35ECh. 6.2 - Prob. 36ECh. 6.2 - Prob. 39ECh. 6.2 - Prob. 40ECh. 6.2 - Prob. 41ECh. 6.2 - Prob. 42ECh. 6.2 - A CAT scan produces equally spaced cross-sectional...Ch. 6.2 - Prob. 44ECh. 6.2 - Prob. 45ECh. 6.2 - Prob. 47ECh. 6.2 - Find the volume of the described solid S. A...Ch. 6.2 - Prob. 49ECh. 6.2 - Prob. 50ECh. 6.2 - Prob. 51ECh. 6.2 - Prob. 52ECh. 6.2 - Prob. 53ECh. 6.2 - Find the volume of the described solid S. The base...Ch. 6.2 - Find the volume of the described solid S. The base...Ch. 6.2 - Prob. 56ECh. 6.2 - Find the volume of the described solid S. The base...Ch. 6.2 - Find the volume of the described solid S. The base...Ch. 6.2 - Prob. 59ECh. 6.2 - Find the volume of the described solid S. The base...Ch. 6.2 - Prob. 61ECh. 6.2 - The base of S is a circular disk with radius r....Ch. 6.2 - Prob. 63ECh. 6.2 - Prob. 64ECh. 6.2 - (a) Cavalieris Principle states that if a family...Ch. 6.2 - Find the volume common to two circular cylinders,...Ch. 6.2 - Prob. 67ECh. 6.2 - A bowl is shaped like a hemisphere with diameter...Ch. 6.2 - Prob. 69ECh. 6.2 - Prob. 70ECh. 6.2 - Some of the pioneers of calculus, such as Kepler...Ch. 6.2 - Prob. 72ECh. 6.3 - Let S be the solid obtained by rotating the region...Ch. 6.3 - Let S be the solid obtained by rotating the region...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Let V be the volume of the solid obtained by...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Use the method of cylindrical shells to find the...Ch. 6.3 - Prob. 20ECh. 6.3 - Prob. 21ECh. 6.3 - Prob. 22ECh. 6.3 - Prob. 23ECh. 6.3 - Prob. 24ECh. 6.3 - (a) Set up an integral for the volume of the solid...Ch. 6.3 - (a) Set up an integral for the volume of the solid...Ch. 6.3 - Prob. 27ECh. 6.3 - Prob. 28ECh. 6.3 - Prob. 29ECh. 6.3 - Prob. 30ECh. 6.3 - Prob. 31ECh. 6.3 - Prob. 32ECh. 6.3 - Prob. 33ECh. 6.3 - Prob. 34ECh. 6.3 - Prob. 37ECh. 6.3 - The region bounded by the given curves is rotated...Ch. 6.3 - Prob. 39ECh. 6.3 - Prob. 40ECh. 6.3 - Prob. 41ECh. 6.3 - Prob. 42ECh. 6.3 - Prob. 43ECh. 6.3 - Let T be the triangular region with vertices (0,...Ch. 6.3 - Prob. 45ECh. 6.3 - Prob. 46ECh. 6.3 - Use cylindrical shells to find the volume of the...Ch. 6.3 - Prob. 48ECh. 6.4 - A 360-lb gorilla climbs a tree to a height of 20...Ch. 6.4 - How much work is done when a hoist lifts a 200-kg...Ch. 6.4 - Prob. 3ECh. 6.4 - When a particle is located a distance x meters...Ch. 6.4 - Shown is the graph of a force function (in...Ch. 6.4 - Prob. 6ECh. 6.4 - A force of 10 lb is required to hold a spring...Ch. 6.4 - A spring has a natural length of 40 cm. If a 60-N...Ch. 6.4 - Suppose that 2 J of work is needed to stretch a...Ch. 6.4 - If the work required to stretch a spring 1 ft...Ch. 6.4 - A spring has natural length 20 cm. Compare the...Ch. 6.4 - If 6 J of work is needed to stretch a spring from...Ch. 6.4 - Prob. 13ECh. 6.4 - Show how to approximate the required work by a...Ch. 6.4 - Show how to approximate the required work by a...Ch. 6.4 - Show how to approximate the required work by a...Ch. 6.4 - Prob. 17ECh. 6.4 - Prob. 18ECh. 6.4 - Show how to approximate the required work by a...Ch. 6.4 - Prob. 20ECh. 6.4 - Show how to approximate the required work by a...Ch. 6.4 - Prob. 22ECh. 6.4 - A tank is full of water. Find the work required to...Ch. 6.4 - Prob. 24ECh. 6.4 - Prob. 25ECh. 6.4 - A tank is full of water. Find the work required to...Ch. 6.4 - Prob. 27ECh. 6.4 - Prob. 28ECh. 6.4 - Prob. 29ECh. 6.4 - Prob. 30ECh. 6.4 - Prob. 31ECh. 6.4 - Prob. 32ECh. 6.4 - (a) Newtons Law of Gravitation states that two...Ch. 6.4 - Prob. 34ECh. 6.5 - Find the average value of the function on the...Ch. 6.5 - Prob. 2ECh. 6.5 - Find the average value of the function on the...Ch. 6.5 - Prob. 4ECh. 6.5 - Find the average value of the function on the...Ch. 6.5 - Prob. 6ECh. 6.5 - Find the average value of the function on the...Ch. 6.5 - Prob. 8ECh. 6.5 - (a) Find the average value of f on the given...Ch. 6.5 - Prob. 10ECh. 6.5 - Prob. 11ECh. 6.5 - Prob. 12ECh. 6.5 - If f is continuous and 13f(x)dx=8, show that f...Ch. 6.5 - Prob. 14ECh. 6.5 - Find the average value of f on [0, 8].Ch. 6.5 - The velocity graph of an accelerating car is...Ch. 6.5 - In a certain city the temperature (in F) t hours...Ch. 6.5 - Prob. 18ECh. 6.5 - The linear density in a rod 8 m long is...Ch. 6.5 - Prob. 20ECh. 6.5 - Prob. 21ECh. 6.5 - Prob. 22ECh. 6.5 - Prob. 23ECh. 6.5 - Prob. 24ECh. 6.5 - Prob. 25ECh. 6.5 - Prob. 26ECh. 6 - (a) Draw two typical curves y = f(x) and y = g(x),...Ch. 6 - Suppose that Sue runs faster than Kathy throughout...Ch. 6 - Prob. 3RCCCh. 6 - Prob. 4RCCCh. 6 - Prob. 5RCCCh. 6 - Prob. 6RCCCh. 6 - Find the area of the region bounded by the given...Ch. 6 - Prob. 2RECh. 6 - Find the area of the region bounded by the given...Ch. 6 - Prob. 4RECh. 6 - Prob. 5RECh. 6 - Prob. 6RECh. 6 - Prob. 7RECh. 6 - Prob. 8RECh. 6 - Prob. 9RECh. 6 - Prob. 10RECh. 6 - Prob. 11RECh. 6 - Set up, but do not evaluate, an integral for the...Ch. 6 - Prob. 13RECh. 6 - Prob. 14RECh. 6 - Prob. 15RECh. 6 - Prob. 16RECh. 6 - Prob. 17RECh. 6 - Prob. 18RECh. 6 - Prob. 19RECh. 6 - Prob. 20RECh. 6 - Prob. 21RECh. 6 - Prob. 22RECh. 6 - The base of a solid is a circular disk with radius...Ch. 6 - Prob. 24RECh. 6 - Prob. 25RECh. 6 - (a) The base of a solid is a square with vertices...Ch. 6 - Prob. 27RECh. 6 - Prob. 28RECh. 6 - Prob. 29RECh. 6 - Prob. 30RECh. 6 - Prob. 31RECh. 6 - Prob. 32RECh. 6 - Prob. 33RECh. 6 - Prob. 34RECh. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - A cylindrical glass of radius r and height L is...Ch. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10PCh. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Suppose the graph of a cubic polynomial intersects...Ch. 6 - Prob. 15P
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