If F(x)=∫2x3sin(t2)dtF(x) = \int_{2}^{x^3} \sin(t^2) dtF(x)=∫2x3sin(t2)dt, what is the derivative F′(x)F'(x)F′(x)?
3x2sin(x6)3x^2 \sin(x^6)3x2sin(x6)
sin(x6)\sin(x^6)sin(x6)
3x2sin(x3)3x^2 \sin(x^3)3x2sin(x3)
x3sin(x6)x^3 \sin(x^6)x3sin(x6)