[单选题]表达式“[3]in[1,2,3,4]”的值为________________。
[主观题]表达式{1,2,3,4,5}^{4,5,6,7}的值为_________________________。
[主观题]表达式{1,2,3}|{3,4,5}的值为_____________________。
[问答题]设向量组α1=(1,2,3,4),α2=(2,3,4,5,),α3=(3,4,5,6),α4=(4,5,6,7),则秩(α1,α2,α3,α4)=--
[问答题]设向量组α1=(1,2,3,4),α2=(2,3,4,5,),α3=(3,4,5,6),α4=(4,5,6,7),则秩(α1,α2,α3,α4)=--
[问答题]设向量组α1=(1,2,3,4),α2=(2,3,4,5,),α3=(3,4,5,6),α4=(4,5,6,7),则秩(α1,α2,α3,α4)=--
[单选题]表达式4*3^2-1/2+3^2的值为A.26.5B.45.5C.44.5D.20.5
[单选题]已知表达式int m[]={0,1,2,3,4,5,6};,下面表达式的值与数组下标量总数相等的是( )。A.m.length()B.m.1engthC.m.1ength()+1D.m.1ength+1
[单选题]已知表达式int m []={0,1,2,3,4,5,6};,下面表达式的值与数组下标量总数相等的是 ( )A.m.length()B.m.lengthC.m.length()+1D.m.length+1
[主观题]表达式{1,2,3}&{2,3,4}的值为___________。