设方阵A.B.C满足AB=AC,当A满足()时,B=C.
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设方阵A.B.C满足AB=AC,当A满足()时,B=C.
A.B.C都可逆
B.AB=BA,AC=CA
C.方程组AX=0仅有唯一零解
D.|A|=0
参考答案:
设方阵A.B.C满足AB=AC,当A满足()时,B=C.
A.B.C都可逆
B.AB=BA,AC=CA
C.方程组AX=0仅有唯一零解
D.|A|=0
参考答案: