Question: please help me answer this question Let A be the following (3 x 3)-matrix: 2 O A = -1 O 1 2 1 Fill in

please help me answer this question

please help me answer this question Let A be the following (3

Let A be the following (3 x 3)-matrix: 2 O A = -1 O 1 2 1 Fill in the values of the three (2 x 2)-determinants which occur in the calculation of the determinant of A on the basis of expansion along the second row. det (A) = 0 . - 1 . - 0

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