mathsurgently needed
posted by Anonymous .
Integrate ( x^2cosx)/(1+sinx)^2 dx
with limits from 0 to pi/4

mathsurgently needed 
Reiny
Wolfram gives us this
http://integrals.wolfram.com/index.jsp?expr=%28+x%5E2cosx%29%2F%281%2Bsinx%29%5E2&random=false
I have no clue how they got that. 
mathsurgently needed 
Anonymous
but i want step by step
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