Let A be a square matrix of order 3 such that transpose of inverse of A is A itself, then |adj (adj A)| is equal to92741
Question
Solution 1
The given condition is that the transpose of the inverse of matrix A is equal to A itself. This can be written as:
(A^-1)^T = A
Taking determinant on both sides, we get:
| (A^-1)^T | = |A|
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