### Solve these 2 indefinate integrals

1) indefinite integral of dx / ((x^2)(sqrt[a^2-x^2])) with respects to x In words it is the integral of the derivative of x all over the quantity of x squared times the square root of a squared minus x squared 2) indefinite integral of dx / ((e^x)(sqrt[4+e^2x])) with respects to x in words it is the integral of the der