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Math Help - How would you write this?

  1. #1
    Senior Member Paze's Avatar
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    How would you write this?

    Given: 'X can be all numbers, except 2'.

    I would write: 'x can be all numbers except x=2.'

    But my teacher writes: 'x can be all numbers except x \neq2'

    Thoughts?
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  2. #2
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    Re: How would you write this?

    Your teacher's sentence doesn't make sense grammatically. I agree with yours. Other ways to write it include \displaystyle \begin{align*} x \in \mathbf{R} \backslash \{  2 \} \end{align*} or \displaystyle \begin{align*} x \in (-\infty, 2) \cup (2, \infty) \end{align*}.
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  3. #3
    Senior Member Paze's Avatar
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    Re: How would you write this?

    Thank you!
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