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The system of equations has no solution if is
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a
-2
b
either -2 or 1
c
not -2
d
1
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Correct option is A
The condition for non-existance of solution is Δ=0 ⇒α111α111α=0⇒ α(α2−1)−1(α−1)+1(1−α)=0⇒ α3−3α +2=0 ⇒α=−2, 1 If α=1, all are coincident It has infinitely many solutions ∴α=−2Similar Questions
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