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Q. \( \sqrt[4]{(81)^{-2}} \)
✏️ Solution
\( = (81^{-2})^{\frac{1}{4}} \)
\( = 81^{-\frac{2}{4}} \)
\( = 81^{-\frac{1}{2}} \)
\( = (9^2)^{-\frac{1}{2}} \)
\( = 9^{-1} \)
\( = \frac{1}{9} \)
\( \boxed{\frac{1}{9}} \)
Q. \( \sqrt[4]{(81)^{-2}} \)
\( = (81^{-2})^{\frac{1}{4}} \)
\( = 81^{-\frac{2}{4}} \)
\( = 81^{-\frac{1}{2}} \)
\( = (9^2)^{-\frac{1}{2}} \)
\( = 9^{-1} \)
\( = \frac{1}{9} \)
\( \boxed{\frac{1}{9}} \)