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square root of 4=2 and 2^2=4 one way to see this without doing that is to know that for any number, call it a, square root of a can be written as a1/2 and then if we square that and use the rules of exponents we have (a(1/2) )2 =a

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15y ago
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Q: What is the square root of four to second power?
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