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2 What is the 2,1-cofactor of the matrix 1 0 A. 1 B. -1 OC. 2 D. 3 E. -6 Reset Selection 2 1 -1

2 What is the 2,1-cofactor of the matrix 1 0 A. 1 B. -1 OC. 2 D. 3 E. -6 Reset Selection 2 1 -1 0 ? 1 1

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