Linear Algebra Quiz
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VECTOR SPACES & SUBSPACES
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Consider a 5×45 \times 4 matrix JJ where every vector in R4\mathbb{R}^4 can be written uniquely as v+w\mathbf{v} + \mathbf{w} where v∈\mathbf{v} \in null(JJ) and Jw∈J\mathbf{w} \in column(JJ). What must be true about the rank of JJ?
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