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Math Help - Help please?

  1. #1
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    Help please?

    show that AX=B has a solution if rank[A| B] = rankA

    I really have no clue on this please help me out thanks (:
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  2. #2
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    Quote Originally Posted by treetheta View Post

    show that AX=B has a solution if rank[A| B] = rankA

    I really have no clue on this please help me out thanks (:
    Hint: if B is not in the column space of A, then rank [A|B] = 1 + rank A > rank A, which is a contradition.
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  3. #3
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    How does this help me show that if your showing me a contradicition
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