# Integration when given the exact value of an un-integratable function

1. Mar 24, 2013

### nick.martinez

given that ∫ e^(-x^2) dx=√∏, calculate the exact value of ∫ e^-((x-a)^2)/c dx

limits of integration for both are from negative infinity to infinity.

I dont even know where to start on this one. I know how to integrate regular functions. How can I find the exact value for an integral I can't even integrate?

Can you think of a sub to turn that integral into $\displaystyle \int_{-\infty}^{\infty} e^{-y^2}dy$?