ddxsin(x3)=\dfrac{d}{dx}\sin(x^3) =dxdsin(x3)=A3x2cos(x3)3x^2 \cos(x^3)3x2cos(x3)check_circleB3x2sin(x3)3x^2 \sin(x^3)3x2sin(x3)Ccos(3x2)\cos(3x^2)cos(3x2)Dcos(x3)\cos(x^3)cos(x3)ExplanationChain rule: cos(x3)⋅3x2\cos(x^3) \cdot 3x^2cos(x3)⋅3x2.