Question

What is the opposite and reciprocal of pi-3?

Answer 1

The opposite is what makes `0` when added
The reciprocal is what makes `1` when multiplied

Explanation:

Opposite:
Usually you 'flip' the signs:
`-pi+3` because `(pi-3)+(-pi+3)=0`

Reciprocal:
Usually you make numerator and denominator change places.
(Think of `pi-3` as `(pi-3)/1`)
Then the reciprocal will be:
`1/(pi-3)` because `(pi-3)/1*1/(pi-3)=1`