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Thread: Rank of this 3x4 matrix?

  1. March 23rd 2010, 09:36 PM #1
    Dranalion
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    Rank of this 3x4 matrix?

    Hi,

    What is the rank of:

    2 -2 4 1
    4 t+3 8-2t 2
    6 -6 t+12 3

    Help is much appreciated,

    Dranlion.
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  2. March 23rd 2010, 11:05 PM #2
    mr fantastic
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    Quote Originally Posted by Dranalion View Post
    Hi,

    What is the rank of:

    2 -2 4 1
    4 t+3 8-2t 2
    6 -6 t+12 3

    Help is much appreciated,

    Dranlion.
    Reduce it to echelon form and count how many rows do not have 0 as every entry.
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