If f(x)=sin(x)f(x) = \sin(x)f(x)=sin(x), then f′′(x)f''(x)f′′(x) is:
cos(x)\cos(x)cos(x)
−sin(x)-\sin(x)−sin(x)
−cos(x)-\cos(x)−cos(x)
sin(x)\sin(x)sin(x)