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Let A = [a b; c d] be a square matrix such that adj A = A. Then, (a + b + c + d) is equal to :
If A is a square matrix of order 3 such that the value of |adj·A| = 8, then the value of |Aᵀ| is :
For the matrix A = [2 -1 1; λ 2 0; 1 -2 3] to be invertible, the value of λ is :
If A is a square matrix of order 3 such that |adj·A| = 8, then the value of |Aᵀ| is :
Let A be a 3 × 3 matrix such that |adj A| = 64. Then |A| is equal to :
If A . (adj A) = [3 0 0; 0 3 0; 0 0 3], then the value of |A| + |adj A| is equal to :
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