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Math Help - Fractional Exponents

  1. #1
    jenna1012
    Guest

    Fractional Exponents

    Let's say we have:

    57^1/3

    my teacher said

    x^a/b = the bth root of x, to the ath.

    So in this case it would be = the 3rd root of 57 to the 1st power.

    How do I find the 3rd root of 57?
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  2. #2
    Senior Member OReilly's Avatar
    Joined
    Mar 2006
    Posts
    340
    Quote Originally Posted by jenna1012 View Post
    Let's say we have:

    57^1/3

    my teacher said

    x^a/b = the bth root of x, to the ath.

    So in this case it would be = the 3rd root of 57 to the 1st power.

    How do I find the 3rd root of 57?
    Since 57 is equal to 3*19, you can use calculator.
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