Question

Evaluate log12 - log4 + log5 and can you explain it to me?

Answer 1

remember some simple log rules


`log(a)+log(b)=log(ab)`
and

`log(a)-log(b)=log((a)/(b))`

work from left to right


`log(12)-log(4)+log(5)=`

`log((12)/(4))+log(5)=`

`log(3)+log(5)=`

`log(3*5)=`

`log(15)`