1. The problem statement, all variables and given/known data Integral of 1/[(x^2+4x+3)^(3/2)] 3. The attempt at a solution I tried completing the square and then using trig substitution. So its: 1/[(x+2)^2 -1] let x+2=sec(theta), dx =sec(theta)tan(theta) After some simplifying, I get it down to integral of csc(theta) which = -ln|csc(theta) + cot(theta)| My calc teacher has the answers online, and it doesnt have any ln in it at all, so im pretty sure im on the wrong track here. Any suggestions?