Find the value of

I have been trying to solve this question since many years but I can't reach anywhere...

I have tried substituting , and but I didnot get the answer.

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- December 27th 2011, 03:03 AMOzymandiasintegral
Find the value of

I have been trying to solve this question since many years but I can't reach anywhere...

I have tried substituting , and but I didnot get the answer. - December 27th 2011, 03:10 AMAgentSmithRe: integral
Substitute .

Do you understand now? - December 27th 2011, 03:11 AMOzymandiasRe: integral
- December 27th 2011, 03:16 AMAgentSmithRe: integral
- December 27th 2011, 03:20 AMOzymandiasRe: integral
okay! thank you for your explanation

- December 27th 2011, 05:09 AMProve ItRe: integral
The reason being...

Therefore