For $a,b geq 0$, integrate
$$int_0^infty dfrac{x^frac{1}{a}}{b}e^{-x} dx. $$
I came across this integral and I have no idea where to begin.
For $a,b geq 0$, integrate
$$int_0^infty dfrac{x^frac{1}{a}}{b}e^{-x} dx. $$
I came across this integral and I have no idea where to begin.