Answer:
The equivalent expression is;
[tex]\frac{1}{z^{-\frac{1}{2}}}=z^{\frac{1}{2}}[/tex]
Step-by-step explanation:
The given expression is:
[tex]\frac{1}{z^{-\frac{1}{2} }}[/tex]
Recall that:
[tex]\frac{1}{a^{-m}}=a^m[/tex]
In our case, [tex]a=z[/tex] and [tex]m=\frac{1}{2}[/tex].
We use this property of exponent to obtain;
[tex]\frac{1}{z^{-\frac{1}{2}}}=z^{\frac{1}{2}}[/tex]