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Linear AlgebraHardVector Spaces & Bases

Vector Spaces & Bases · Hard problem

What is the dimension of the span of the vectors (0,1,2)(0, 1, 2), (0,1,0)(0, 1, 0), (0,−2,2)(0, -2, 2), (0,1,4)(0, 1, 4) in R3\mathbb{R}^{3}?