Math

Simplify.
(16/81)^-3/2
I don’t quite understand what to do with this problem can someone please explain it to me so I understand it

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  1. rules of exponents

    inverting the fraction changes the sign of the exponent

    fractional exponent is a root ...x^1/2 = √x

    (16/81)^-3/2 = (81/16)^3/2 = (√81 / √16)^3

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  2. Thank you

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