Math Chapter Wise question with answer

Q01 If A is a 2× × ×2 matrix such that adj A=6, |A|=12, then trace (A–1) is English · LT 2018 Q02 Consider the following statements: I. If A is skew-symmetric matrix, then A2 is symmetric. II. Trace of a skew-symm... English · LT 2018 Q03 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 Q04 If 1 0 3 0 A = and B = 0 2 0 4 then English · Bihar (TRE 2.0)-2023 Q05 If A and B are invertible matrices of the same order, then English · Bihar (TRE 2.0)-2023 Q06 If the area of a triangle with the vertices (-3, 0), (3, 0) and (0, k) is 9 sq. units, then the value of k is English · Bihar (TRE 2.0)-2023