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2015-04-26 23:35:43 +0100 | answered a question | integral(abs(cos(x)),(x,0,pi)) thanks Both of your suggestions work!!! |
2015-04-26 19:06:05 +0100 | asked a question | integral(abs(cos(x)),(x,0,pi)) this is for sure 2, however it evaluates to -1 !!! Is there anything wrong with the statement itself? Any suggestion? |