Question

Please people help me with this

Answer 1

see explanation

Explanation:

Using the rules of logarithms

• log x + log y = log xy

• log x - log y = log (
`(x)/(y)` )

• log
`x^(n)` = n log x

(a)

`log_(7)` 9 +
`log_(7)` 2 =
`log_(7)` (9 × 2) =
`log_(7)` 18

(b)

`log_(8)` 7 -
`log_(8)` 11 =
`log_(8)`
`(7)/(11)`

↑ required value

(c)

2
`log_(9)` 2 =
`log_(9)` 2² =
`log_(9)` 4