Jawabanmu

2014-04-27T22:41:02+07:00
A : 3, 2, 3 
B : 2, -4, 1 
C : 4, 0, 3

V= 3a + 2b - c 
   = 3(3, 2, 3) + 2(2, -4, 1) - (4, 0, 3)
   = (9, 6, 9) + (4, -8, 2) - (4, 0, 3)
   =  9, -2, 8