Friday, 10 March 2017

calculus - Evaluation of intpi/20frac1left(acos2(x)+bsin2(x)right)n,dx

I would like to evaluate (using elementary methods if possible) : (for a>0, b>0)




In=π/201(acos2(x)+bsin2(x))ndx, n=1,2,3,
I thought about using u=tan(x) or u=π2x but did not work. wolfram alpha evaluates the indefinite integral but not definite integral???


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