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Linear AlgebraHardVector Spaces & Bases

Vector Spaces & Bases · Hard problem

What is the dimension of the span of the vectors (0,8,0,−4)(0, 8, 0, -4), (0,4,0,−4)(0, 4, 0, -4), (−2,1,0,0)(-2, 1, 0, 0), (4,3,0,−2)(4, 3, 0, -2) in R4\mathbb{R}^{4}?