A.181
B.28l
C.441
D.620
[单选题]-1,2,1,9,100,()A.81B.360C.10000D.11881
[单选题]-1,2,1,9,100,()A.81B.360C.10000D.11881
[单选题]1,9,36,100,( )A.81B.27C.125D.225
[单选题]:1,9,36,100,225,( )A.400B.484C.529D.441
设随机变量X与Y的联合分布律为X/Y 1 2 3-|||-1 1/9 2/9 2/9-|||-2 0 dfrac (1)(9) dfrac (2)(9)-|||
A X=0 =1-dfrac (theta )(100), X=1 =dfrac (theta )(100). B X=0 =1-dfrac (theta
经过初等行-|||-变换系数矩阵A的行最简形矩阵为 () .-|||-A-|||- 100-1 0 1 0 -1 0 0 1. -1 -|||-B-|||- 1
求5阶行列式1 0 99 87 71-|||-2 1 3 5 9-|||-0 0 1 0 0 0-|||-1 0-|||-0 0 8 1 0-|||-0 0 1
[单选题]0,1,1,2,5,9,()A.11B.14C.18D.17
[单选题]-7,0,1,2,9,()A .12B .18C .24D .28