What is (243^(1/5))²?

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• A 9
• B 1
• C 3
• D 0

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Answer: A. 9

243 = 3 x 3 x 3 x 3 x 3 = 3^5, so the fifth root 243^(1/5) = 3. Squaring gives 3^2 = 9.

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