Question

1
____
-1
x

Answer 1

Can you retype that please? Where is the x supposed to be?

Answer 2

I think it's supposed to be

\[\Large \frac{1}{x^{-1}}\]

Answer 3

If so, then use the rule

\[\Large \frac{1}{x^{-k}} = x^{k}\]

to get

\[\Large \frac{1}{x^{-1}} = x^{1}\]

\[\Large \frac{1}{x^{-1}} = x\]