. For each of the following m × n matrices, independently compute the rank and nullity of the matrix and hence confirm the conservation of dimension formula: n = nullity + rank. (a) A₁ = (b) A₂ = (c) A3 : = 0 1 1 (H) 1 0 0 1 1 2 0-1 1 0 −1 1 1 5

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