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  1. C

    Integration by parts

    hi, i would like help on a problem i am currently stuck on. \int(e^x)/(1+e^(2x))dx <-- it's suppose to be \int (e^x)/(1+e^(2x))dx using integration by parts, here's what i done: u=e^x du=e^x dv=(1+e^(2x)) v = (need to use anti-differentiation, which i don't remeber...) can i...