Let A be a 3 x 3 matrix with determinant equal to 2. 4 -8 If the adjoint of A is equal to 12 8 then A is equal to -4 4 1 -2 [1 -2 3. -1 2 -2 4 [2 -1] 14 2. O the above matrix the above matrix -4 [2 6. 0-2 -2 4 [4 O the above matrix ONone of the mentioned

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