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30 October, 05:50

Simplify 1/9^-3?

A. 1/-27

B. 9^3 = 729

C. 1/-729

D. 9^-3 = - 27

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Answers (2)
  1. 30 October, 06:04
    0
    The answer is b) 9^3 = 729
  2. 30 October, 06:12
    0
    Exponent rule : a^-b = 1 / (a^b)

    1/9 ^-3 =

    1 / (1/9^3) =

    1 / (1^3) / (9^3) =

    1 / (1/729) =

    1 * 729/1 =

    729

    ur answer is B
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