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Linear AlgebraMediumVector Spaces & Bases

Vector Spaces & Bases · Medium problem

What is the dimension of the null space of A=(30−33−2−104−13−10)A = \begin{pmatrix}3 & 0 & -3 & 3 \\ -2 & -1 & 0 & 4 \\ -1 & 3 & -1 & 0\end{pmatrix}?