Interactive: Derivative of Cosine

Derivative of the Sine Function: \[\frac{d}{{dx}}\left( {\cos x} \right) = - \sin x\]

Instructions: Drag P along \(f(x) = cos(x)\) to see that the slope of the tangent line through it traces out \(f'(x) = -sin(x)\).

Interactive: Derivative of Sine

Derivative of the Sine Function: \[\frac{d}{{dx}}\left( {\sin x} \right) = \cos x\]

Instructions: Drag P along \(f(x) = sin(x)\) to see that the slope of the tangent line through it traces out \(f'(x) = cos(x)\).