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Math Help - Help with turning a fraction into a exponent

  1. #1
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    Help with turning a fraction into a exponent

    hey everybody, i hope im posting this in the right place but i am trying to figure out how to turn :

    (u+1)/2 into an exponent of u so i can multiply it by u^(1/2)

    total problem:

    ((u+1)/2)*(u^(1/2))

    Any help at all would be awesome and thanks!
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  2. #2
    Senior Member mollymcf2009's Avatar
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    Quote Originally Posted by ckylek View Post
    hey everybody, i hope im posting this in the right place but i am trying to figure out how to turn :

    (u+1)/2 into an exponent of u so i can multiply it by u^(1/2)

    total problem:

    ((u+1)/2)*(u^(1/2))

    Any help at all would be awesome and thanks!
    u^\frac{1}{2} = \sqrt u

    Maybe use that instead?
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  3. #3
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    sorry

    Quote Originally Posted by mollymcf2009 View Post
    u^\frac{1}{2} = \sqrt u

    Maybe use that instead?
    hey sorry i wasn 't really clear with my question. my problem wasnt really with
    u^(1/2) it was with how to turn (u+1)/2 into a exponent so i can do the rest of the problem. Im studying this for a cal II college midterm tomorrow but i dont think this is really a calculus question, i think its more algebra....not sure tho.

    but thanks for your help
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  4. #4
    Senior Member mollymcf2009's Avatar
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    Quote Originally Posted by ckylek View Post
    hey sorry i wasn 't really clear with my question. my problem wasnt really with
    u^(1/2) it was with how to turn (u+1)/2 into a exponent so i can do the rest of the problem. Im studying this for a cal II college midterm tomorrow but i dont think this is really a calculus question, i think its more algebra....not sure tho.

    but thanks for your help

    Ok, so could you not multiply through using the \sqrt u ?

    I mean, I guess you could do this:

    (u+1) \cdot 2^{-1} that's about it though
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  5. #5
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    Quote Originally Posted by mollymcf2009 View Post
    Ok, so could you not multiply through using the \sqrt u ?

    I mean, I guess you could do this:

    (u+1) \cdot 2^{-1} that's about it though

    Yeah! Actually that works great for the purposes of getting u. I guess I was thinking about it the wrong way but what you suggested works great! Thank You!!

    ....back to studying
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