Evaluate
1998\sqrt{2}\approx 2825.598697621
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999\times 2\sqrt{2}
Factor 8=2^{2}\times 2. Rewrite the square root of the product \sqrt{2^{2}\times 2} as the product of square roots \sqrt{2^{2}}\sqrt{2}. Take the square root of 2^{2}.
1998\sqrt{2}
Multiply 999 and 2 to get 1998.
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