Question

g(x) = cosh(ln x) find the derivative

Answer 1

You have to use the Chain Rule, because this function does 2 things after another with x.
Also, you need to know the derivatives of ln x and cosh x.
Does this ring a bell?

Answer 2

The Chain Rule tells you how to calculate the derivative of a compund function:
begin with the last step of the function. Here: cosh. Write down the derivative of cosh and leave ln x as it is. After this, you deal with ln x: multiply the result so far with the derivative of ln x.

Answer 3

Hey @sumayyahzidan10, are you still with me?