[int(0)^(oo/2)(xdx)/(sin x+cos x)=],[pi ...

[int_(0)^(oo/2)(xdx)/(sin x+cos x)=],[pi log(sqrt(2)+1)],[(pi)/(2sqrt(2))log(sqrt(2)+1)],[sqrt(2sqrt(2)log(sqrt(2)+1))],[0],[" 1If oundanerror "]

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int_(0)^((pi)/(2))(xdx)/(sinx+cosx)=(pi)/(2sqrt(2))log(sqrt(2)+1)

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