I am in physics and my calculus skills are rusty. I need to take the integral of the following:

(d) /(y^2 + d^2)^(3/2) dy I know that I use the power rule and I end up with (y^2 + d^2)^(-1/2) / (-1/2) and then since I have the d to intergrate should that not be d times y ???

The answer is y/ (d (y^2 + d^2 )^(1/2) ) evaluated between the given limits. Can someone PLEASE tell me the error in my thinking? Thank you Frostking