If F(x)=∫0xsin(t2)dtF(x) = \int_0^x \sin(t^2) dtF(x)=∫0xsin(t2)dt, what is F′(x)F'(x)F′(x)?
cos(x2)\cos(x^2)cos(x2)
2xcos(x2)2x \cos(x^2)2xcos(x2)
sin(x2)\sin(x^2)sin(x2)
2xsin(x2)2x \sin(x^2)2xsin(x2)