Over the positive quadrant of the circle x2 + y2 = 1 is __________.

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Answer (Detailed Solution Below)

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Detailed Solution

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Concept:

We are given the double integral over the positive quadrant of the circle :

Region of Integration:

The circle is a unit circle. The positive quadrant implies:

  • ,
  • ,

So, the limits become:

  • y from 0 to 1
  • for each y, x goes from 0 to √(1 - y2

Calculation:

Take constants outside the inner integral:

Inner integral:

So the expression becomes:

Use substitution: Let

Change limits: ,

So the integral becomes:

Integrating:

 

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