find the valueof
![\sqrt[4]{81 { }^{- 2} }](https://tex.z-dn.net/?f=+%5Csqrt%5B4%5D%7B81+%7B+%7D%5E%7B-+2%7D+%7D+ "\sqrt[4]{81 { }^{- 2} }")
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Answer:
answer is 1/3
Step-by-step explanation:
(81^-2)^1/4
=(1/81)^1/4
=(1/3×3×3×3)^1/4
=1/3.
(power of 1/4 means 1 is the power and 4 is the root)
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