Find the derivative of f(x)=sin(x)+x3f(x) = \sin(x) + x^3f(x)=sin(x)+x3.
cos(x)+3x2\cos(x) + 3x^2cos(x)+3x2
−cos(x)+3x2-\cos(x) + 3x^2−cos(x)+3x2
cos(x)+x2\cos(x) + x^2cos(x)+x2
sin(x)+3x2\sin(x) + 3x^2sin(x)+3x2