Do I use integration by substitution?? this is a really tricky question for me

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- December 13th 2012, 11:04 PMasilvester635Calculus integration (hard)
Do I use integration by substitution?? this is a really tricky question for me

- December 13th 2012, 11:35 PMMarkFLRe: Calculus integration (hard)
Yes, try the substitution:

Then use:

- December 14th 2012, 09:06 AMasilvester635Re: Calculus integration (hard)
LOL so the final answer is sec(1-x)... wow it's that easy...

- December 14th 2012, 11:07 PMMarkFLRe: Calculus integration (hard)
Not quite that easy...you need to correctly substitute for the differential to get: