Leibniz$$s Rule $($p$.345)$ is a direct application of the chain rule. To illustrate that

fact, find the following derivative by using the chain rule; make sure to identify the

inside function and the outside function: d

dx $($R x$3$

$7$ cos$2($t$)$ dt$).$ Recall: The chain rule

conclusion is d

dx $($f $($g$($x$))=$ f $($g$($x$))$ g$($x$),$ where f is the outside function and g is the

inside function