Question

What is the value of log5, 125?

3
5
15
25

Answer 1

3

Explanation:

Using the rule of logarithms

`log_(b)` x = n ⇒ x =
`b^(n)`

let
`log_(5)` 125 = n , then

125 =
`5^(n)` , that is

5³ =
`5^(n)`

Since the bases on both sides are equal, both 5 then equate the exponents

n = 3