Evaluate
9\sqrt{3}\approx 15.588457268
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\sqrt{9}\sqrt{9}\sqrt{3}
Factor 27=9\times 3. Rewrite the square root of the product \sqrt{9\times 3} as the product of square roots \sqrt{9}\sqrt{3}.
9\sqrt{3}
Multiply \sqrt{9} and \sqrt{9} to get 9.
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