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Math Help - [SOLVED] Logic check, and mini question.

  1. #1
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    [SOLVED] Logic check, and mini question.

    ;(
    Last edited by Noxide; October 11th 2009 at 01:34 PM. Reason: Accidental Double POST!
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  2. #2
    Super Member Matt Westwood's Avatar
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    Quote Originally Posted by Noxide View Post
    x + 3y + 5z = 4
    x + 2y - 3z = 5
    2x + 5y + 2z =8

    This system has no solution.
    The planes in the row picture don't meet at a point.

    Ok.

    So three vectors fill a 3D space if all three at independent, ie they are not linear combinations of each other.
    That's right. The technical term is "span", in case you're interested.
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  3. #3
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    O crap, the rest of my question got deleted... Argh.

    Thanks though!

    I'll post the actual question in a few seconds if you're still around!
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