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If A=[(-1,0,0,1),(-1,1,0,2),(-1,0,0,1),(...

If `A=[(-1,0,0,1),(-1,1,0,2),(-1,0,0,1),(0,0,0,0)], then A(adjA)` equals (A) `[(1,5,0,2),(5,1,7,1),(-1,0,1,0),(0,0,5,0)]` (B) zero matrix (C) a scalar quantity (D) identity matrix

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