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Linear AlgebraMediumRow Reduction & Rank

Row Reduction & Rank · Medium problem

What is the rank of M=(−1−320202−21−34−2)M = \begin{pmatrix}-1 & -3 & 2 & 0 \\ 2 & 0 & 2 & -2 \\ 1 & -3 & 4 & -2\end{pmatrix}?