MathematicsMedium244×since 2002Q4663If for the matrix, A = \left[ {\matrix{ 1 & { - \alpha } \cr \alpha & \beta \cr } } \right], AAT=I2A{A^T} = {I_2}AAT=I2, then the value of α4+β4{\alpha ^4} + {\beta ^4}α4+β4 is :A3B2C1D4Check answerSkip