For the function f(x)=∫xx2et2dtf(x) = \int_{x}^{x^2} e^{t^2} dtf(x)=∫xx2et2dt, what is f′(1)f'(1)f′(1)?
eee
e4e^4e4
2e4−e2e^4 - e2e4−e
e4−ee^4 - ee4−e