Asked by  | 18th Feb, 2009, 07:57: PM

Expert Answer:

we can write sin5x = sin4x sinx = ( 1- cos2x)2 sinx

now if we put cosx = t then we get -sinx dx = dt

so now we have to integrate  -( 1- t2)2 dt which can be solved easily.

similarly we can solve the other half.


Answered by  | 18th Feb, 2009, 09:52: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.