The following system of equations x₁ + x₂ + 2x₃ = 1 x₁ + 2x₂ + 3x₃ = 2 x₁ +…
GATE · 2008 · CSModified — slightly modified from the official paper; see the solution
The following system of equations
x₁ + x₂ + 2x₃ = 1
x₁ + 2x₂ + 3x₃ = 2
x₁ + 4x₂ + αx₃ = 4
has a unique solution. The only possible value(s) for α is/are
- A.
either 0 or 1
- B.
any real number
- C.
0
- D.
any real number other than 5
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