设三阶矩阵 =(alpha ,gamma 1,(y)_(2)), =(beta ,gamma 1,(gamma )_(2))其中 =(alpha ,gamma 1,(y)_(2)), =(beta ,gamma 1,(gamma )_(2)) 均为 3 维列向量则=(alpha ,gamma 1,(y)_(2)), =(beta ,gamma 1,(gamma )_(2)) ==(alpha ,gamma 1,(y)_(2)), =(beta ,gamma 1,(gamma )_(2))=(alpha ,gamma 1,(y)_(2)), =(beta ,gamma 1,(gamma )_(2))=(alpha ,gamma 1,(y)_(2)), =(beta ,gamma 1,(gamma )_(2))=(alpha ,gamma 1,(y)_(2)), =(beta ,gamma 1,(gamma )_(2))

向量 alpha = ((1)/(2) ), beta = ((3)/(2) ), 向量 gamma 满足 2gamma + alpha = 3beta, 那么

设 A 与 B 为 4 阶方阵，alpha, beta, gamma_2, gamma_3, gamma_4 均为 4 维列向量，A = (alpha, gam

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.

单选题-|||-令 =((alpha )_(1),(alpha )_(2),beta ) =((alpha )_(1),(alpha )_(2),gamma )

已知alpha_(1),alpha_(2),beta,gamma均为3维列向量，又A=(alpha_(1),alpha_(2),beta)，B=(alpha_(

1.单选题1.1 若4×4矩阵A=(alpha_(1),gamma_(2),gamma_(3),gamma_(4)),B=(beta_(1),gamma_(2)

3.设三阶方阵A=}alpha2gamma_(1)3gamma_(1),已知|A|=6,|B|=1,则|A-B|=____.3.设三阶方阵$A=\begin{p

[单选题]设α、β、γ都是非零向量，α×β=α×γ，则（）。A . AB . BC . CD . D

[单选题]具有△αβ，γδ-δ-内酯环的强心苷元，在UV光谱中的最大吸收是A．217～220nmB．270～278nmC． 295～300nmD．300～330nmE．217～220nm, 270nm

已知 alpha_1, alpha_2, alpha_3, beta, gamma 均为 4 维列向量，又 A = (alpha_1, alpha_2, alp