Hi, just needa clear up how to do some certain questions before i start uni in a few weeks. Intergrate: sin(x) . cos^4 (x) I'm not sure if i needa split up the coses to use an identity or whatever. intergrate: xe^(x^2+1) = xe(x^2+1)/2x (1/2)e(x^2+1) ? I think that is right but not certain. and Intergrate: 5/m - 3√m expressing answer in surd form I get as far as 5ln|m| .. then get slightly confused by the second part. Cheers in advance to thoose who can help and shows steps to refresh me.