Evaluate
3\sqrt{3}\approx 5.196152423
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\sqrt[8]{81^{3}}
Use the rules of exponents to simplify the expression.
81^{3\times \frac{1}{8}}
To raise a power to another power, multiply the exponents.
81^{\frac{3}{8}}
Multiply 3 times \frac{1}{8}.
3\sqrt{3}
Raise 81 to the power \frac{3}{8}.
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