Math Chapter Wise question with answer

Q01 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 Q02 If A is a square matrix such that A2 = I, then (A – I)3 + (A + I)3 – 7A equals: English · NVS PGT 2022 Q03 Let a 1 4 A 0 b 7 0 0 3 − = be a matrix with real entries, If the sum and the produce of all the eigen values of A... English · JDD-75-PGT TIER II-X-15 28.06.2015 Q04 Let 2 0 0 A 0 2 0 0 0 2 = and 1 2 3 B 0 1 3 0 0 2 = be matrices. Then the determinant of AB equals: English · NVS PGT 10-06-2019 Q05 The pth, qth, rth terms of HP are a, b, c respectively then 2 2 2 2 2 2 2 2 2 b c + c a + a b pbc + qca + rab bc +... English · Rajasthan TGT 2013 Q06 If 1 2 A 4 3 = −, then A2 + 4A – 5I equals English · UP PCS (Pre) 1998