Question

1/x^-2 for x=7
a. -49
b. 49

Answer 1

\[\large \frac{1}{x^{-a}} = x^a\]

Use this concept..

Answer 2

so is it 49?

Answer 3

Yes absolutely right..

Well done..

Answer 4

thanks again!! ;)

Answer 5

Welcome dear..

Answer 6

And remember this concept also:

\[\large \frac{1}{x^a} = x^{-a}\]