Question

What is the derivative of `ln(5x)`?

Answer 1

Here is another way of getting the answer, using the properties of `ln`

Explanation:

`f(x) = ln(5x) = ln(5)+ln(x)`

`ln(5)` is a constant , so its derivative is `0` and we get:

`f'(x) = 0+1/x = 1/x`

Answer 2

The derivative of `f(x)=ln(5x)` is `d(f(x))/dx=(d(5x)/dx)/(5x)=5/(5x)=1/x`