3. Techniques of Differentiation

Find the derivative of the function.

$h\left(t\right)=\sin \left(t\right)\cos \left(t\right)$

Find the derivative of the function.

$f\left(x\right)=\frac{5\cos x}{2x^3}$

Find the derivative of the function.

$y=\frac{\sin \theta }{2+\cos \theta }$

Find the indicated derivative.

$f^{19}\left(x\right)$ of $f\left(x\right)=\cos x$