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Standards/Math/Massachusetts/N-RN.A

N-RN.A

N-RN Number and Quantity - The Real Number System
N-RN.A
N-RN.A.1N-RN.A.2
N-RN.B

Extend the properties of exponents to rational exponents.

N-RN.A.1Explain how the definition of the meaning of rational exponents follows from extending the properties of integer exponents to those values, allowing for a notation for radicals in terms of rational exponents. For example, we define 5^(1/3) to be the cube root of 5 because we want (5^(1/3))^3 = 5^((1/3)3) to hold, so (5^(1/3))^3 must equal 5.N-RN.A.2Rewrite expressions involving radicals and rational exponents using the properties of exponents.
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