Wikipedia:Reference desk/Archives/Mathematics/2011 June 26

= June 26 =

Problem with Finite Integration
Problem with Finite Integration

My question is regarded as below:

http://farm4.static.flickr.com/3281/5872497175_ed916dd63a.jpg

Pls help. I'm desperate in need of a solution.Torment273 (talk) 17:32, 26 June 2011 (UTC)
 * Partial integration Integration by parts. Write the thing as $$\int f(x) \sin x\,dx + \int f^{\prime\prime}(x)\sin x\,dx$$. In the first term, set $$u = f(x)$$ and $$ v^\prime = \sin x$$, in the second term, set $$ u^\prime = f^{\prime\prime} (x)$$ and $$v = \sin x$$. You should end up with boundary terms only, from which you can read off $$f(0)$$. --Wrongfilter (talk) 19:07, 26 June 2011 (UTC)
 * That link doesn't go where you intend, I believe. Grandiose (me, talk, contribs) 19:09, 26 June 2011 (UTC)
 * Sorry, got fooled by a false friend. --Wrongfilter (talk) 19:12, 26 June 2011 (UTC)