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Linear AlgebraMediumVector Spaces & Bases

Vector Spaces & Bases · Medium problem

What is the dimension of the null space of A=(−2−3−2140−24−1−30−1)A = \begin{pmatrix}-2 & -3 & -2 & 1 \\ 4 & 0 & -2 & 4 \\ -1 & -3 & 0 & -1\end{pmatrix}?