【单选题】已知三阶方阵A的特征值为1,-1,2,则方阵【图片】的行列式为
【单选题】三阶方阵A的特征值为1,2,3则【图片】的特征值为
【简答题】三阶方阵A的特征值为1,-1,2,则【图片】的特征值为( )
【单选题】已知三阶方阵A的特征值为1,-1,2, 则矩阵【图片】的特征值为
【简答题】A.Because they are alike. B.Because the man's briefcase has a lock. C.Because the man's briefcase is smaller. D.Because she doesn't have a briefcase.
【简答题】A.Because she helped him in the kitchen. B.Because it's the girl's birthday. C.Because she can't cook well. D.Because her father enjoys cooking.
【简答题】A.Because it serves only a few specialties. B.Because it's too crowded. C.Because it's too costly. D.Because the service is too slow.
【简答题】A.Because it serves only a few specialties. B.Because it's too crowded. C.Because it's too costly. D.Because the service is too slow.
【简答题】A.Because it serves only a few specialties. B.Because it's too crowded. C.Because it's too costly. D.Because the service is too slow.