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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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re: Some Thoughts | Comment 2 of 5 |
(In reply to Some Thoughts by Bractals)

Bractals: I think you missed the absolute value signs.  The integral is very definitely positive.
  Posted by Steve Herman on 2008-07-24 12:50:58

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