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How do you figure out that 1/4 is 2 to the -2 power?

James862

by James862 at October 14, 2010

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2^-2 is equivalent to 1/(2^2) or 1/4. When you have a negative exponent in the numerator, you take both the base (2 in this case) and the exponent (-2 in this case) to the numerator and then the exponent become positive.

Adam01_141561 Adam01_141561 October 14, 2010

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Because x^-2 is equal to 1/x^2Therefore, x^-2 is equal to 1/2^2Which is equal to 1/4

yankeekid yankeekid October 14, 2010

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