Evaluate
\sqrt{2}\approx 1.414213562
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\frac{1}{7}\times 7\sqrt{2}
Factor 98=7^{2}\times 2. Rewrite the square root of the product \sqrt{7^{2}\times 2} as the product of square roots \sqrt{7^{2}}\sqrt{2}. Take the square root of 7^{2}.
\sqrt{2}
Cancel out 7 and 7.
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