1. The problem statement, all variables and given/known data Evaluate the following integral: (int)1/sqrt(2x-x2)dx 2. Relevant equations d(arcsinx)/dx = 1/sqrt(1-x2) 3. The attempt at a solution I just need a good start in the right direction on this one so I can at least try it. I know the arcsin d/dx as above, but how do I make this work? Is it some kind of integration by parts or reduction? I have no idea how to go about dealing with the sqrt(2x-x2) mostly, or how it would get there from arcsin... any help you can give would be much appreciated!