若|A|=1/2,A*是4阶方阵A的伴随矩阵,则|(2A*)^-1|等于..
人气:448 ℃ 时间:2020-01-21 17:53:16
解答
|(2A*)^-1|
= |2A*|^-1
= (2^4 |A|^3)^-1
= 2^-1
= 1/2
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