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Math Help - Is this right?

  1. #1
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    Is this right?

    Hi Guys,

    Given this question and I think I have it correct but it just doesn't look right.

    Have I done something wrong?

    Cheers

    Expand ( x + ⅟x ) = x + 2x⅟x + ⅟x₂
    = x + 2 + ⅟x₂
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  2. #2
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    Hey!

    Quote Originally Posted by Joel View Post
    Hi Guys,

    Given this question and I think I have it correct but it just doesn't look right.

    Have I done something wrong?

    Cheers

    Expand ( x + ⅟x ) = x + 2x⅟x + ⅟x₂
    = x + 2 + ⅟x₂
    (x + \frac{1}{x})^2 = x^2+2*x*\frac{1}{x}+(\frac{1}{x})^2

    =x^2+2+\frac{1}{x^2}

    Yes, you are right!

    Cheers
    Rapha
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  3. #3
    Moo
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    Hello,
    Quote Originally Posted by Joel View Post
    Hi Guys,

    Given this question and I think I have it correct but it just doesn't look right.

    Have I done something wrong?

    Cheers

    Expand ( x + ⅟x ) = x + 2x⅟x + ⅟x₂
    = x + 2 + ⅟x₂
    No, it's correct
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  4. #4
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    Just didn't look right for some reason. The text that you reply in... is that from a special program, as it makes math symbols just so clear, rather than in word
    ??? thanks heaps
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  5. #5
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    Quote Originally Posted by Joel View Post
    Just didn't look right for some reason. The text that you reply in... is that from a special program, as it makes math symbols just so clear, rather than in word
    ??? thanks heaps
    It's a mathematics compiling language known as LaTeX.

    If you want to learn how to use it, there is a LaTeX help sub-forum on this site.
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