i need help please with the function

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i need help please with the function

1.Find the derivative of the function.

y = cos(cos(cos x))

2.Find the derivative of the function.

F(t) = e8tsin 2t

3.rite the composite function in the form 

f(g(x)).

 [Identify the inner function 

u = g(x)

 and the outer function 

y = f(u).]

$ y = e^{{color{red}3}sqrt{x}} $

(g(x), f(u)) =

Find the derivative 
dy/
dx.

4.Find the derivative of the function.

y=9^1-x^2

5.Find the derivative of the function.

y = cos
1 − e6x
1 + e6x