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seen Jan 22 '13 at 23:32

Feb
28
revised How to solve $\frac{dp}{dt}=t^2p-p+t^2-1$
sorryy !! I made typo it was t^2p not t^2x
Feb
27
revised Surface area formula
i changed the formula parts
Feb
12
revised How to find $\int_{\frac{\pi}{2}}^{\frac{\pi}{4}}\cot^5x\,\csc^3xdx$
edited body
Feb
8
revised How to find$\int x^2 \arctan(x) \;dx $
edited title