Evaluate
2\sqrt{19}\approx 8.717797887
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\sqrt{2}\sqrt{2}\sqrt{19}
Factor 38=2\times 19. Rewrite the square root of the product \sqrt{2\times 19} as the product of square roots \sqrt{2}\sqrt{19}.
2\sqrt{19}
Multiply \sqrt{2} and \sqrt{2} to get 2.
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