Evaluate
5\sqrt{11}\approx 16.583123952
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\sqrt{5}\sqrt{5}\sqrt{11}
Factor 55=5\times 11. Rewrite the square root of the product \sqrt{5\times 11} as the product of square roots \sqrt{5}\sqrt{11}.
5\sqrt{11}
Multiply \sqrt{5} and \sqrt{5} to get 5.
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