Given f(x)=sin(x)f(x) = \sin(x)f(x)=sin(x), what is f′(x)f'(x)f′(x)?
−sin(x)-\sin(x)−sin(x)
cos(x)\cos(x)cos(x)
−cos(x)-\cos(x)−cos(x)
tan(x)\tan(x)tan(x)