Question

Find the Derivative of y=tan(cos(9t)).

If you could explain it please

Answer 1

Answer:

-9sin(9t)sec²(cos(9t))

Step-by-step explanation:

First differentiate the function and then the angle

sec²(cos(9t)) × -sin(9t) × 9

-9sin(9t)sec²(cos(9t))