设矩阵A,B,C,满足AB=BA,AC=CA证明A(BC)=(BC)A
问题描述:
设矩阵A,B,C,满足AB=BA,AC=CA证明A(BC)=(BC)A
答
A(BC)=(AB)C=(BA)C=B(AC)=B(CA)=(BC)A
设矩阵A,B,C,满足AB=BA,AC=CA证明A(BC)=(BC)A
A(BC)=(AB)C=(BA)C=B(AC)=B(CA)=(BC)A