   Chapter 7.8, Problem 38E ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919

#### Solutions

Chapter
Section ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919
Textbook Problem
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# Changing the Order of Integration In Exercises 37-44, sketch the region R whose area is given by the double integral. Then change the order of integration and show that both orders yield the same value. See Example 5. ∫ 1 3 ∫ 2 4 d x   d y

To determine

To graph: The region whose area is given by double integration 1324dxdy, the change the order of integration and shows both orders yield same value.

Explanation

Given Information:

The provided double integration is 1324dxdy.

Graph:

Consider the double integration,

1324dxdy.

From limits of integration, the bounds for x are 2x4 and bounds for y are 1y3.

The graph of region bounded by 2x4 and 1y3 is shown in below,

The area for the region 2x4 and 1y3 is

1324dxdy

Evaluate the above integration integrate with respect to x by holding y constant,

1324dxdy=13[x]24dy

Now, replace the x by limit of integration,

13[x]24dy=13dy=13dy

Evaluate the above integration integrate with respect to y by holding x constant,

13dy=[2y]13

Now, replace the y by limit of integration,

[2y]13=62=4

Now change the order of integration dxdy to dydx

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