If f(x)=∫0sin(x)et2dtf(x) = \int_0^{\sin(x)} e^{t^2} dtf(x)=∫0sin(x)et2dt, what is the derivative f′(x)f'(x)f′(x) at x=π/2x = \pi/2x=π/2?
0
eee
1
−1-1−1