### 15.3.2 Derivatives of Specific Functions

This subsection is not completed yet, but in the meantime here are some practice questions.

Remember:
\begin{align*} \frac{\dif }{\dif x}\sin x &= \cos x\\ \frac{\dif }{\dif x} \cos x &= -\sin x\\ \frac{\dif }{\dif x} \tan x &= \sec^2 x \end{align*}