(Choose 1 answer)
(See picture)
A. None of the other choices is true
B. All numbers but -2
C. -2
D. All numbers but 4
E. 4
Find all values of k for which the system of linear equations has nontrivial solution
x+2y+z= 0
3x +7y+kz = 0
4x+7y+3z = 0
Q: 32
