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Saturday, May 4, 2013
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 \(f'(x) = -sin(x)\).
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