Teaching MPPSC Assistant Professor Mock Test Series 2025 Mathematics Matrices Adjoint and Inverse of a Square Matrix
If A and B are two invertible matrices of the same order, then adj (AB) is not equal to
1
adj(B) adj(A)
2
|B||A|B–1 A–1
3
|B||A|A–1B–1
4
|A||B| (AB)–1