已知 (A)=dfrac (1)(2) ,(B)=dfrac (1)(3) ,-|||-(C)=dfrac (1)(5) ,(AB)=dfrac (1)(10) ,-|||-(AC)=dfrac (1)(15) , (BC)=dfrac (1)(20) ,-|||-(ABC)=dfrac (1)(30) ,求 cup B ,overline (A)overline (B) ,-|||-cup Bcup C,overline (A)overline (B)C ,overline (AB)C , __ 的-|||-overline (AB)cup C-|||-概率.

已知 (A)=dfrac (1)(2) , (B)=dfrac (1)(3) , (C)=dfrac (1)(5)-|||-, (AB)=dfrac (1)(1

已知 (A)=dfrac (1)(2) ,(B)=dfrac (1)(3) ,-|||-(C)=dfrac (1)(5) ,(AB)=dfrac (1)(10)

已知_(1)=((dfrac {1)(3),-dfrac (2)(3),-dfrac (2)(3))}^T, _(2)=((-dfrac {2)(3),dfra

10、单选-|||-极限 lim _-|||-A-|||-dfrac (1)(6)-|||-B dfrac (1)(2)-|||-C -dfrac (1)(3)

(B) =2, =dfrac (1)(3).-|||-(C) =1, =dfrac (1)(2). (D) =1, =-dfrac (1)(3),求指导本题解题

(B) dfrac (1)(2)(X)_(1)+dfrac (1)(2)(X)_(2)-|||-(C) dfrac (1)(2)(X)_(1)+dfrac (1

dfrac (1)(12)-|||-(B) dfrac (1)(2) .-|||-C dfrac (1)(8)-|||-) dfrac (1)(6)

,,UNDUNDUND上的可能是-|||-()-|||-A.dfrac (1)(10)-|||-B.dfrac (1)(5)-|||-C.dfrac (1)(3

dfrac (1)(2)x+dfrac (1)(3)=dfrac (1)(4)x-dfrac (1)(5)

dfrac (1)(5)(X)_(1)+dfrac (2)(5)(X)_(2)+dfrac (2)(5)(X)_(3)-|||-D .dfrac (1)(7)(