cos3x/(2+sinx) lnx/(x*((lnx)^4)-1) x>0 dx/(2+sinx+2cosx) sqrt((x-3)/(x+3)) plz show me all the steps thanx..
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Originally Posted by crazyhanna cos3x/(2+sinx) Write as triple angle identity, (4cos^3 x - 3sin x)/(2+sin x) Now use Weierstrauss Substitution. lnx/(x*((lnx)^4)-1) x>0 I think you mean, ln x/(x*(ln^4 x -1)) In that case let t=ln x To get, t/(t^4-1) Which you can do with partial fractions.
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