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Absolutely Different (Posted on 2008-07-24) Difficulty: 2 of 5
Evaluate this definite integral:

pi
∫ (| |sin y| - |cos y| |) dy
0

Note: |x| denotes the absolute value of x.

See The Solution Submitted by K Sengupta    
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Some Thoughts Some Thoughts | Comment 1 of 5
If you sketch the problem you can see that the integral is zero.
  Posted by Bractals on 2008-07-24 12:14:16
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