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Math Help - What is |x|

  1. #1
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    Dec 2011
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    What is |x|

    Hi all, I've exams coming up this week and am going back over notes and answering example questions. One of the question is to find |x| with x being the vector:

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    4

    Looking back over my notes I've found nothing about it and searching |x| seems to leave out the | parts. How is |x| found or what is it? Thanks for your time
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  2. #2
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    Dec 2011
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    Re: What is |x|

    Never mind, found what I needed to know
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