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- Dec 4th 2007, 11:31 AMJhevon
- Dec 4th 2007, 03:05 PMTwistedOne151Error in limits
ebonyscythe, I think you have an error in the limits of your first integral:

$\displaystyle u = \cos x$, so when x=0, $\displaystyle u = \cos (0) = 1$, and so your first integral should be $\displaystyle -\int_{1}^{-1} u^2*du$, not $\displaystyle -\int_{0}^{-1} u^2*du$.

--Kevin C.