IROC for sine and cosine

First derivative, then sub in ur x

Chain Rule

Oftentimes, you may need chain rule. $\frac{d}{dx}f(g(x))=f^{\prime }(g(x))\ast g^{\prime }(x)\ast$ For example, with the function f(x) = sin(6x), the derivative is: cos(6x) * 6

Another! $7cos(\frac{\pi }{3}x+2)-6$ f’(g(x)) = $-7sin(\frac{\pi }{3}x+2)$ g’(x) = $\frac{\pi }{3}$ $-\frac{7\pi }{3}(\frac{\pi }{3}x+2)$