Question

Which of the followingis multiplicative of -a? (-1/a a 1 1/a)​

Answer 1

Given:

The given value is
`-a`.

To find:

The multiplicative inverse of
`-a`.

Solution:

We know that
`y` is the multiplicative interval of
`x` if
`xy=1`.

Let
`x` be the multiplicative inverse of the given value
`-a`. Then,

`(-a)* x=1`

Divide both sides by
`-a`.

`x=(1)/(-a)`

`x=-(1)/(a)`

Therefore, the multiplicative inverse of
`-a` is
`-(1)/(a)`. Hence the correct option is A.