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Nonlinear Functions

SAT Math· difficulty 2/5

Which expression is equivalent to x1/3x^{1/3}?

  • A

    1x3\dfrac{1}{x^3}

  • B

    x3\sqrt[3]{x}

    check_circle
  • C

    3x3x

  • D

    x\sqrt{x}

Explanation

Fractional exponent 1/n1/n corresponds to the nnth root: x1/3=x3x^{1/3} = \sqrt[3]{x}.

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