# Thread: differentiate with respect to t

1. ## differentiate with respect to t

can somebody help me to differentaiate this

y = (4 sin 3t) (cosh 4t)

2. Product and chain rule, it's all you need.

3. That and
$\frac{d}{dx}sin(x) = cos(x)$
and
$\frac{d}{dx}cosh(x) = sinh(x)$

-Dan