设
A . 
B . 
C . 
D . 
参考答案与解析：
-
相关试题
-
设alpha=(3,-1,0,2)^T，beta=(3,1,-1,4)^T，若向量gamma满足2alpha+gamma=3beta，则gamma=().
-
设alpha=(3,-1,0,2)^T，beta=(3,1,-1,4)^T，若向量gamma满足2alpha+gamma=3beta，则gamma=().A.
- 查看答案
-
设 alpha, beta 都是 n 维的单位列向量，则 alpha - beta 与 alpha + beta 的内积为()
-
设 alpha, beta 都是 n 维的单位列向量，则 alpha - beta 与 alpha + beta 的内积为()A. 1B. 0C. -1D. 2
- 查看答案
-
beta_1 = alpha_1, beta_2 = alpha_1 + alpha_2, beta_3 = alpha_1 + alpha_2 + alpha_3, 记A = [alpha_1, a
-
beta_1 = alpha_1, beta_2 = alpha_1 + alpha_2, beta_3 = alpha_1 + alpha_2 + alpha
- 查看答案
-
设矩阵 =((alpha )_(1),(alpha )_(2),(alpha )_(3),(beta )_(1))，=((alpha )_(1),(alpha )_(2),(alpha )_(3),(
-
设矩阵 =((alpha )_(1),(alpha )_(2),(alpha )_(3),(beta )_(1))，=((alpha )_(1),(alpha
- 查看答案
-
设 alpha (alpha )_(1),(alpha )_(2),(alpha )_(3),(beta )_(1),(beta )_(2) 均为四维列向量矩阵，alpha (alpha )_(1),
-
设 alpha (alpha )_(1),(alpha )_(2),(alpha )_(3),(beta )_(1),(beta )_(2) 均为四维列向量矩阵
- 查看答案
-
6.设α1,α2,α3线性无关, (beta )_(1)=a(alpha )_(1)+b(alpha )_(2) (beta )_(2)=a(alpha )_(2)+b(alpha )_(3) (be
-
6.设α1,α2,α3线性无关, (beta )_(1)=a(alpha )_(1)+b(alpha )_(2) (beta )_(2)=a(alpha )_(
- 查看答案
-
设 P 为正交矩阵，向量 alpha, beta 的内积为 (alpha, beta)= 2，则 (Palpha, Pbeta)= (
-
设 P 为正交矩阵，向量 alpha, beta 的内积为 (alpha, beta)= 2，则 (Palpha, Pbeta)= (A. $\frac{1}{
- 查看答案
-
1 设 -|||-A、 α,β.-|||-B、 α,β,y:-|||-C、 alpha +beta ;-|||-D、 alpha -beta ;
-
1 设 -|||-A、 α,β.-|||-B、 α,β,y:-|||-C、 alpha +beta ;-|||-D、 alpha -beta ;
- 查看答案
-
4.设向量组beta_(1)=alpha_(1)+2alpha_(2)-alpha_(3),beta_(2)=alpha_(1)+2alpha_(2)+2alpha_(3),beta_(3)=alph
-
4.设向量组beta_(1)=alpha_(1)+2alpha_(2)-alpha_(3),beta_(2)=alpha_(1)+2alpha_(2)+2alp
- 查看答案
-
4.设α、β为三维列向量,矩阵 =alpha (alpha )^T+(beta beta )^T, 证明:-|||-(1) (A)leqslant 2-|||-(2)若α、β线性相关,则 (A)lt
-
4.设α、β为三维列向量,矩阵 =alpha (alpha )^T+(beta beta )^T, 证明:-|||-(1) (A)leqslant 2-|||-
- 查看答案