Question

Select each pair of expressions that are equivalent.

Answer 1

Rule for negative exponents:

x^-a = 1/x^a

so: 3^-2 = 1/3^2 , YES

4^-3 = 1/4^3, in the question the result said: 1/4^-3 = 4^-3 , so NO

the last one should have been obvious even without knowing the rule.

btw, 1/9 = .111111.....

hope it helps you

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