Find the derivative of f(x)=∫x2x31tdtf(x) = \int_{x^2}^{x^3} \frac{1}{t} dtf(x)=∫x2x3t1dt.
1x\frac{1}{x}x1
1x2\frac{1}{x^2}x21
1x3\frac{1}{x^3}x31