Consider the function F(x)=∫x2xsin(t)tdtF(x) = \int_{x}^{2x} \frac{\sin(t)}{t} dtF(x)=∫x2xtsin(t)dt. What is the value of F′(x)F'(x)F′(x) at x=πx = \pix=π?
0
-1/\pi
1/\pi
\pi