Question

It is a polynomial:
$\sqrt{2 {x}^{ - 2} }$
$\frac{2}{ {x}^{ - 2} }$
$\sqrt{2} {x}^{2}$
$\frac{2}{ {x}^{2} }$
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Answer 1

Step-by-step explanation:

option b is a polynomial $\frac{2}{ {x}^{ - 2} }$