I have been working on these integral for 4 weeks... haven't been able to get anything yet. I am preparing for a competition and came across these bad boys.

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- March 21st 2013, 11:16 AMsmokesalotDifficult integrals

I have been working on these integral for 4 weeks... haven't been able to get anything yet. I am preparing for a competition and came across these bad boys. - March 21st 2013, 11:20 AMsmokesalotRe: Difficult integrals
I found the solution to the second integral. It turned out to be the Gaussian Integral!

- March 21st 2013, 02:07 PMkezmanRe: Difficult integrals
Try using this page. Wolfram Mathematica Online Integrator

I ve done for you the first one. Doesnt seem to have any sense but maybe I made a typing mistake.

http://integrals.wolfram.com/index.jsp?expr=(x*sin(x))%2F(1+%2B+cos(x)^2)&rando m=false - March 21st 2013, 03:45 PMProve ItRe: Difficult integrals
- March 21st 2013, 10:25 PMsmokesalotRe: Difficult integrals
wow nice, didn't see that! Thank you so much :)