Question

Let P and Q be 3 x 3 matrices P ≠ Q. If P³ = Q³ and P²Q = Q²P then determinant of (P² + Q²) is equal to:(a) –2(b) 1(c) 0(d) –1

Answer 1

Let P and Q be 3 x 3 matrices P ≠ Q. If P³ = Q³ and P²Q = Q²P then determinant of (P² + Q²) is equal to:(a) –2(b) 1(c) 0(d) –1