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Linear AlgebraMediumRow Reduction & Rank

Row Reduction & Rank · Medium problem

What is the rank of M=(1616−8−1200001616−8−12)M = \begin{pmatrix}16 & 16 & -8 & -12 \\ 0 & 0 & 0 & 0 \\ 16 & 16 & -8 & -12\end{pmatrix}?