1. The problem statement, all variables and given/known data Hello, I came across an unusual integral problem in my Physics book that I could not solve. The book simply skips the work and says to check the integral tables, but I wasn't able to find one that satisfied this problem. 2. Relevant equations This is the problem: integral of (x^2+y^2)^(-3/2)dy 3. The attempt at a solution Tried u-sub, but the lack of y makes it impossible. Couldn't do trig sub because of the negative exponent. When I plugged it into WolframAlpha, it gave me a tidy solution, but the solutions are unavailable even in their app. It loads for a bit and shows "solution unavailable." The proper solution should be y/[(x^2)*√(x^2+y^2)]+constant. Here is the actual URL: http://www.wolframalpha.com/input/?i=integral+of+(x^2+y^2)^(-3/2)dy&incTime=true This is the second time coming across this integral in this chapter and I cannot solve it for the life of me. Any insights would be greatly appreciated. Thanks!