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Math Help - a little help in the right direction please

  1. #1
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    a little help in the right direction please

    I don't get the last conversion. what is happening there?

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  2. #2
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    Re: a little help in the right direction please

    Quote Originally Posted by thatsmessedup View Post
    I don't get the last conversion. what is happening there?

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     \frac{1}{x} = x^{-1}

     \frac{1}{x^b} = x^{-b}

    your  b = \frac{1}{2}

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  3. #3
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    Re: a little help in the right direction please

    so the lesson learned is a/a^b = a^b
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  4. #4
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    Re: a little help in the right direction please

    Quote Originally Posted by thatsmessedup View Post
    so the lesson learned is a/a^b = a^b
    no, a/a^b = a^(-b)

    I think you meant the first fraction transformation: x/x^(1/2) which is the same as x^(1)/x^(1/2) which is the same as x^(1 - 1/2), do you get it now,
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  5. #5
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    Re: a little help in the right direction please

    Neither a/a^b= a^b nor a/a^b= a^{b- 1} is correct. a/a^b= a^{-b+1}. 1/a^b= a^{-b}.
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  6. #6
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    Re: a little help in the right direction please

    ^^ got it! thanks
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