Posted by **Frank** on Friday, November 30, 2012 at 2:34pm.

integrate from 0 to pi/4 (sec^2x)/((1+7tanx)^2)^1/3

integrate form pi^2/36 to pi^2/4 (cos(x^1/2))/(xsin(x^1/2))^1/2

integrate from 0 to pi/3 (tanx)/(2secx)^1/2

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