Teaching AP DSC School Assistant 2025 Mock Test Series Mathematics Matrices Adjoint and Inverse of a Square Matrix
Which of the following statements is correct?
1
If A is triangular, A-1 is also triangular
2
If A is any matrix, then adj (AT) = adj (A)
3
If A and B are square matrices of order n, then adj (AB) = (adj A) (adj B)
4
All the above are incorrect