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Linear AlgebraMediumRow Reduction & Rank

Row Reduction & Rank · Medium problem

What is the rank of M=(−12−10−1216611−22868−14)M = \begin{pmatrix}-12 & -10 & -12 & 16 \\ 6 & 11 & -2 & 2 \\ 8 & 6 & 8 & -14\end{pmatrix}?