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Linear AlgebraMediumRow Reduction & Rank

Row Reduction & Rank · Medium problem

What is the rank of M=(10−1−3−2−14−20014200)M = \begin{pmatrix}10 & -1 & -3 & -2 \\ -14 & -2 & 0 & 0 \\ 14 & 2 & 0 & 0\end{pmatrix}?