(2)已知A=,求(A*">
(2)已知A=,求(A*">

(1)设A为n阶方阵,|A|=2,求
(2)已知A=,求(A*

(1)设A为n阶方阵,|A|=2,求
(2)已知A=,求(A*-1.


【正确答案】:
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