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anonymous
 4 years ago
How does (40/square root 2) becomes 8*square root 2?
anonymous
 4 years ago
How does (40/square root 2) becomes 8*square root 2?

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Kainui
 4 years ago
Best ResponseYou've already chosen the best response.1\[(40/\sqrt{2}) *(\sqrt{2}/\sqrt{2})\] Simply by multiplying by a number over itself is a clever way of changing a number into a slightly different form. You can do this because any number divided by itself equals 1, just like 5*1=5.

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.1...so the answer is that 40/sqrt2 becomes 8sqrt2 by multiplying by 2/5 :P
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