Level:
Project ID:
2010004809
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Evaluate the following expression at \(x = 9\).
\[
\frac{x^{-2}}
{x^{-\frac{1}{2}} - x^{-1}}
\]
\(\frac{1}
{18}\)
\(-\frac{1}
{18} \)
\(\frac{27}
{2}\)
\(-\frac{27}
{8}\)