Respuesta :
Logarithm is written in form of [tex]\log _b\left(x\right).[/tex]
Where b is the base of log (x).
We need to explain what is called when the base of logarithmic function is e.
The is it can be written in the from [tex]\log _e\left(x\right)[/tex].
We can see it's log (x) with base e.
When we have base e of a logarithmic function it is called a natural logarithm.