mjmiller2011 wrote:The last four answers are equivalent to saying that the matrix is invertible. The first one is not. Lets think of M as a 3x3 matrix, instead of a 5x5 for simplicity's sake. Let the left column read [0 1 1], the middle column read [0 0 1] and the right column read [0 1 0]. These column vectors are linearly independent, but the determinant of the matrix is zero.
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