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Evaluate integers raised to positive rational exponents

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Q. triangle math

Identify Operation: Identify the square root operation. $\newline$ Square root of $81$ is written as $81^{1/2}$ .
Express as Perfect Square: Express $81$ as a perfect square. $\newline$ $81$ is the same as $9$ squared, or $9^2$ .
Apply Square Root: Apply the square root to the perfect square. $\newline$ The square root of $9^2$ is $9$ , because $(9^2)^{1/2} = 9^{2*(1/2)} = 9^1 = 9$ .

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