### All Calculus 3 Resources

## Example Questions

### Example Question #1 : Double Integration In Polar Coordinates

Evaluate the following integral by converting into Polar Coordinates.

, where is the portion between the circles of radius and and lies in first quadrant.

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**Correct answer:**

Explanation:

We have to remember how to convert cartesian coordinates into polar coordinates.

Lets write the ranges of our variables and .

Now lets setup our double integral, don't forgot the extra .

### Example Question #2 : Double Integration In Polar Coordinates

Evaluate the integral

where D is the region above the x-axis and within a circle centered at the origin of radius 2.

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**Correct answer:**

Explanation:

The conversions for Cartesian into polar coordinates is:

The condition that the region is above the x-axis says:

And the condition that the region is within a circle of radius two says:

With these conditions and conversions, the integral becomes:

### Example Question #3 : Double Integration In Polar Coordinates

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### Example Question #4 : Double Integration In Polar Coordinates

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### Example Question #5 : Double Integration In Polar Coordinates

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### Example Question #6 : Double Integration In Polar Coordinates

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### Example Question #7 : Double Integration In Polar Coordinates

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### Example Question #8 : Double Integration In Polar Coordinates

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### Example Question #9 : Double Integration In Polar Coordinates

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### Example Question #10 : Double Integration In Polar Coordinates

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### All Calculus 3 Resources

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