A.1
B.-1
C.
D.1/
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.D.1/
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.D.1/
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.D.1/
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.D.1/
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.D.1/
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.D.1/
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.kD.1k
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.kD.1k
[单选题]已知xy=kz(k为正常数),则等于( )。A.1B.-1C.kD.1k
[问答题]已知矩阵只有一个线性无关的特征向量,那么矩阵A的特征向量是----------------.