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svet-max [94.6K]
1 year ago
15

Sketch the region of integration and change the order of integration. $\int_{0}^{{\color{red}16}} \int_{0}^{\sqrt{x}} f(x, y)dy

dx$
Mathematics
1 answer:
skelet666 [1.2K]1 year ago
3 0

The integral after the change of order of integration is \int\limits^4_0 {\int\limits^{y^2}_0 {f(x,y)} \, dx } \, dy.

<h3>What is meant by changing the order of integration?</h3>
  • The order of integration is responsible for the description of the region and accordingly the limits of the integration.
  • Here the change of order of integration implies the change of limits of integration.
  • If the region of integration consisted of a vertical strip and slides along the x-axis then in the changed order a horizontal strip and a slide along the y-axis are to be considered and vice-versa.

<h3>Calculation:</h3>

Given integration is

\int\limits^{16}_0 {\int\limits^{\sqrt{x}}_0 {f(x,y)} \, dy } \, dx

Drawing the region of the given integration by taking the curves from the limits as y = √x ⇒ x = y² and y = 0; and the lines x = 0 and x = 16

The region of the given integration is shaded in red color.

Then change the order of the integration by fixing the axes,

as y = 0 then x = 0, and y = 4 then x = y²

Thus, the changed limits are:

x: 0 to y²

y: 0 to 4

Then the new integration with the changed order of integration is

\int\limits^4_0 {\int\limits^{y^2}_0 {f(x,y)} \, dx } \, dy

Learn more about changing the order of integration here:

brainly.com/question/14529241

#SPJ4

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The answer to that question is the sum of the hours he studied for on both days, which will be 1/4 + 3/8.

However, we cannot add fractions with different denominators. In this case, it's 4 and 8.

So if we want to add them, we must make the denominators similar to each other. How to make 4 into 8? We multiply it by 2: 4 x 2 = 8.

BUT when we multiply fractions, we must multiply both the numerator and the denominator by the same number to keep its original value. In this case, if you want to multiply 4 by 2, you must also multiply 1 by 2.

=> SO to make 1/4 into y/8, we will multiply it like this (1 x 2) / (4 x 2) = 2/8

Now we can add the 2 fractions together. 2/8 + 3/8 = (2 + 3)/8 = 5/8. THIS IS YOUR ANSWER.

TL;DR: He studied 5/8 (or 0.625) hour altogether on both days.
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