Question

Solve or simplify the following problem, using the properties of roots:
${\left(\frac{1}{81}\right)}^{-\frac{1}{4}}$

• A. $3$
• B. $5$
• C. $4$
• D. $2$

Answer 1

The correct option is A $3$

$3:{\left(\frac{1}{81}\right)}^{-\frac{1}{4}}={81}^{\frac{1}{4}}=\sqrt[4]{481}=3$