From the definition of a logarithm:
When you get
Hence and since then
Alternatively think of them as inverse operations which "cancel"
exp(log(3))=3 or e^ln(3)=3, why?
I am reading an explanation like this:
"3 is the end result of growing instantly (using e) at a rate of ln(3). 3 = e^ln(3)"
BUT I cannot understand it... actually I don't understand so well, e as well ln ... please try to explain me while keeping this things in the mind - THANKS