the chain rule tell you F(g(x))' at x0 is F'(g(x0)) * g'(x0), so
a) [sinh(f(x))]' = cosh(f(x))*f'(x)
if u is a function such that u = f(x), state the formulas requested below.
a. what does d/dx[sinh u] equal
b. what does d/dx[cosh u] equal
c. what does d/dx[tanh u] equal
d. find the derivative of the function y = sech(4x +2) using substitution.