Math Chapter Wise Matrices And Determinants English MCQ EMRS PGT-2023 Q.If α and β are the roots of the equation x2 + x + 1 = 0 then 1 β α β α β equals: A1 1 1 2 − − − B1 2/2 1 C1 1 1 2 − − D1 1/1 2 Show answer Correct answer: 1 1 1 2 − − −