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a
{−2,3}
b
{−3,4}
c
{4,−6}
d
{−2,−1}
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Correct option is D
Applying R2→R2−R1,R3→R3−R1 we getΔ=1−42002−1502(x+2)5x2−4=2(x+2)1−1515(x−2) =10(x+2)(x+1)Now, Δ=0⇒x=−2,−1Similar Questions
If [ ] denotes the greatest integer less than or equal to the real number under consideration, and ,, then the value of the determinant is
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