Question

what is the answer of this question​

Answer 1

Answer:

$\frac{1}{9}$

Step-by-step explanation:

$\sqrt[4]{ {81}^{ - 2} } \\ \sqrt[4]{ \frac{1}{ {81}^{2} } } \\ \\ \frac{1}{ {81}^{ \frac{2}{4 } } } \\ \frac{1}{9} \\ {9}^{ - 1}$