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Math Help - Helps solving 4x5

  1. #1
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    Apr 2010
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    Helps solving 4x5

    Solve:

    x1 x2 x3 x4
    5 -6 4 4 = 0
    -1 1 2 2 = 5
    4 -5 6 6 = 5
    2 -2 -4 -4 =-10

    (x1
    x2 = ( ) + ( ) s + ( ) t
    x3
    x4)
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  2. #2
    MHF Contributor
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    Quote Originally Posted by cityfrontsailor View Post
    Solve:

    x1 x2 x3 x4
    5 -6 4 4 = 0
    -1 1 2 2 = 5
    4 -5 6 6 = 5
    2 -2 -4 -4 =-10

    (x1
    x2 = ( ) + ( ) s + ( ) t
    x3
    x4)
    Do the rref. of: \begin{bmatrix}<br />
5 & -6 & 4 & 4 & 0\\ <br />
-1 & 1 & 2 & 2 & 5\\ <br />
4 & -5 & 6 & 6 & 5\\ <br />
2 & -2 & -4 & -4 & -10<br />
\end{bmatrix}
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