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  • 2021 April(Z04) Math Question 18

    Exponents, Radicals, & Scientific Notation

    - Exponent Expressions

    Laws of exponents
    Choice D

    $$ \left(\frac{27}{64}\right)^{-\frac{2}{3}} $$

    $$ =\left(\frac{64}{27}\right)^{\frac{2}{3}} $$

    $$ =\left(\frac{(4)^{3}}{(3)^{3}}\right)^{\frac{2}{3}} $$

    $$ =\left(\frac{(4)^{2}}{(3)^{2}}\right) $$

    $$ =\frac{16}{9} $$

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