Hi, please help me, what can prove it

Attachment 23891

thanks

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- May 17th 2012, 08:34 AMvernalcot(x) and ln sin(x)
Hi, please help me, what can prove it

Attachment 23891

thanks - May 17th 2012, 08:41 AMSylvia104Re: cot(x) and ln sin(x)
Try for some functions

By the way, you stated the range of as but I think you mean

PS: and - May 17th 2012, 09:41 AMSylvia104Re: cot(x) and ln sin(x)
I beg your pardon, the functions are negative in the given range so we need to do it this way:

Show that for where

Then integrate with respect to from to and multiply through by - May 17th 2012, 12:28 PMvernalRe: cot(x) and ln sin(x)

Sorry. yes . http://latex.codecogs.com/gif.latex?...x%20\leq%20\pi

thanks - May 17th 2012, 12:34 PMvernalRe: cot(x) and ln sin(x)
thanks, but i can't understand.:( There another way?