Question

What is the opposite and reciprocal of -1?

Answer 1

The opposite of `-1` is `1`, and the reciprocal of `-1` is `((1)/(-1))=-1`.

Explanation:

The opposite of a number is the additive inverse, which when added to the original number, the result is zero.

`-1+1=0`

The reciprocal of a number is the multiplicative inverse, which when multiplied times the original number, the result is one.

`-1*((1)/(-1))=1`