Question: 49
(Choose 1 answer)
Find all vectors (a,b,c,d) such that the following set is orthogonal:
{(1,0,-1,1), (2,1,1,-1), (1,-3,1,0), (a,b,c,d)}
A. t(-1,2,10,13)+s(-1,0,7,8)
B. t(-1,5,10,11)
C. t(-1,2,10,13)+s(-2,0,-6,8)
D. t(-1,3,10,11)
E. None of the other choices is correct
