Q87
The following system of equations x1 + x2 + 2x3 = 1 x1 + 2x3 + 3x3 = 2 x1 + 4x2 + ax3 = 4 has a unique solution. The only possible value(s) for a is/are
A.
0
B.
either 0 or 1
C.
one of 0, 1 or -1
D.
any real number other than 5
AnswerAnswer: Option D
Solution
Answer: Option D
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