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Linear AlgebraMediumVector Spaces & Bases

Vector Spaces & Bases · Medium problem

What is the dimension of the null space of A=(0−3304−341412−2)A = \begin{pmatrix}0 & -3 & 3 & 0 \\ 4 & -3 & 4 & 1 \\ 4 & 1 & 2 & -2\end{pmatrix}?