Math Chapter Wise Matrices And Determinants English MCQ EMRS PGT-2023 Q.Let A = 0 0 -1 0 -1 0 -1 0 0 The only correct statement about the matrix A is: AA= (–1)I, where I is a unit matrix BA–1/does not exist CA2 = I DA is a zero matrix Show answer Correct answer: A2 = I