college level calculus

Question

pls follow the Chain Rule

d/dw (arcsin (cos (w/4)) )

Answer 1

I am going to write the derivative just as you should work through it.

I am not going to simplify it so that you can see what the differentiation process.

You can simplify it if you want/need to.

{1/sqrt[1-cos²(w/4)]} * [-sin(w/4)] * (1/4)