In this problem $\displaystyle F(1)$ where $\displaystyle F'(x)=e^{-t^2}$

And$\displaystyle F(0) = 2$

find the value of the function so I wind up with this

$\displaystyle F(x) = 2 + \int e^{-t^2}$

plug in one for x but how do I anti differentiate this

$\displaystyle \int e^{-t^2}$