ID: Class: 12 Subject: Math Topic: Matrices and Determinants Type: Mcq Year: 2025

Question:

If \(A\) and \(B\) are invertible matrices, then which of the following is \underline{not correct}?
  • A. \((A + B)^{-1} = B^{-1} + A^{-1}\)
  • B. \((AB)^{-1} = B^{-1} A^{-1}\)
  • C. \(\text{adj}(A) = |A| A^{-1}\)
  • D. \(|A^{-1}| = |A|^{-1}\)