[单选题]1,3,2,6,11,19,()A .8B .11C .30D .36
[主观题]1,3,4,6,11,19,()A.57;B.34;C.22;D.27;
[单选题]1,3,4,6,11,19,()A . 21B . 23C . 25D . 34
[单选题]1/3,4/7 ,7/11 ,2/3 ,13/19 ,( )A. 16/21B. 16/23C. 18/21D. 17/21
[主观题]计算。1/9+5/9+2/9=6/11+3/11+1/11=1/4+1/4+3/4=7/10-1/10-3/10=11/6-7/6-1/6=1-2/3-1/3=
[单选题]1,2,3,6,11,20,( )A .25B .36C .42D .37
单选;-|||-A= 3 0)-|||-1 3 B=-|||-2 -1 1 2 则 2A-3B= __ AB=-|||-(1) -7 6 6 6-|||-1 -
行列式-1 0 2-|||-6 3 4-|||-19 5 3的元素6的代数余子式等于( )A.10B.-10C.11D.-11行列式的元素6的代数余子式等
[单选题]1/3,4/7,7/11,2/3,13/19,( )A.16/21B.16/23C.18/21D.17/21
[单选题]1/3,4/7,7/11,2/3,13/19,()A.16/21B.16/23C.18/21D.17/21