Math Chapter Wise question with answer

Q01 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 Q02 In a third order determinant aij denotes the element of the ith column. If aij= 0, when i=j, aij=–1, for<i<j then t... English · TGT 2004 Q03 Let A = 0 0 -1 0 -1 0 -1 0 0 The only correct statement about the matrix A is: English · EMRS PGT-2023 Q04 The system of equations: ax + y + z = α –1 x + αy + z = α –1 and x + y + αz = α –1 has no solution, if α is: English · EMRS PGT-2023 Q05 If α and β are the roots of the equation x2 + x + 1 = 0 then 1 β α β α β equals: English · EMRS PGT-2023 Q06 The matrix 3 0 0 0 4 0 0 0 5 is a: English · EMRS PGT-2023