問題詳情

6. Let A be a nxn reai nsalrix. Prove that if A2 + l= 0, where 1 is the identity matrix,then n is even. (10 poinis)

參考答案

答案:B
難度:非常簡單0.958694
統計:A(24),B(998),C(9),D(10),E(0)

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