2
(Choose 1 answer)
(See picture)
A -2
B. All numbers different from 2
C. All numbers different from -2
D. 2
E. None of the other choices is correct
Find all values of a for which the following homogeneous system
x + 2y = 0
x+3y+3z = 0
2x + 5y + az = 0
has only the trivial solution?
