(B) =2, =dfrac (1)(3).-|||-(C) =1, =dfrac (1)(2). (D) =1, =-dfrac (1)(3),求指导本题解题
dfrac (1)(5)(X)_(1)+dfrac (2)(5)(X)_(2)+dfrac (2)(5)(X)_(3)-|||-D .dfrac (1)(7)(
dfrac (1)(6)-|||-C. dfrac (1)(2) D. dfrac (1)(3)
dfrac (1)(6)-|||-C. dfrac (1)(2) D. dfrac (1)(3)
. . 0 1 3-|||-p .dfrac (1)(5) .dfrac (1)(6) dfrac (1)(5) .dfrac (1)(15) dfrac (1
. . 0 1 3-|||-p .dfrac (1)(5) .dfrac (1)(6) dfrac (1)(5) .dfrac (1)(15) dfrac (1
dfrac (1)(2)-|||-C dfrac (1)(6)-|||-D . dfrac (1)(36)
_(1)-(F)_(2)-|||-C. dfrac (2)(3)(F)_(1)+dfrac (1)(3)(F)_(2)-|||-D. dfrac (2)(3)(
(B) dfrac (7)(8) . (C) dfrac (5)(8) . (D) dfrac (1)(8)
已知 (A)=dfrac (1)(2) ,(B)=dfrac (1)(3) ,-|||-(C)=dfrac (1)(5) ,(AB)=dfrac (1)(10)