Math Chapter Wise question with answer

Q01 If B is a matrix such that B2 = B and A = I – B, then which of the following is not correct? English · UP PGT 2021 Q02 If B is a non-zero 3× × ×1 matrix and A is a non-zero 1× × ×3 matrix and if r denotes the rank of AB then English · UP PCS (Pre) 2008 Q03 Inverse of the matrix 2 k 3 5 will not exist if k is equal to English · UP PCS (Pre) 2009 Q04 If A is an invertible matrix of order 2, then det (A-1) is equal to English · Bihar (TRE 2.0)-2023 Q05 If P is an invertible matrix, then incorrect statement is English · RPSC PGT 2022 Q06 If the matrix A is invertible, then the value of |A–1 | is English · UPPSC Ashram Paddhati 2021