1.

Let P and Q be 3×3 matrices with P≠Q. If P3=Q3 and P2Q=Q2P, then the determinant of (P2+Q2) is equal to

Answer»

Let P and Q be 3×3 matrices with PQ. If P3=Q3 and P2Q=Q2P, then the determinant of (P2+Q2) is equal to



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