Math Chapter Wise question with answer

Q01 If A is an invertible matrix of order 2, then det (A-1) is equal to English · Bihar (TRE 2.0)-2023 Q02 If the order of matrix A = 4 × 3, order of matrix B = 4 × 5 and order of matrix C = 7 × 3, then the order of (At ×... English · NVS PGT 2022 Q03 If A and B are idempotent matrices of same order, then AB is idempotent matrix if and only if: English · DSSSB PGT 2021 Q04 11 12 13 11 12 13 21 22 23 21 22 23 31 32 33 b b b a a a A b b b, a a a b b b then order of matrix A is English · OAVS TGT 2021 Q05 If A is a square matrix of order n, then value of adj (adj A) is- English · UPPSC GIC 2021 UPPSC Ashram Paddhati 2021 Q06 If A be a non-singular square matrix of order 3×3 and |A| = 5, then the value of |adj A| is: English · UKPSC Lecturer (Mains) 2020