If \( a x^{2}+b x+1=0 \), a e \( R \), b e \( R \), does not have d...

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If \( a x^{2}+b x+1=0 \), a e \( R \), b e \( R \), does not have distinct real roots then the least value of \( 3 a-2 b \) is
\( \mathrm{P} \)
(a) \( -\frac{2}{3} \)
(b) -1
(c) \( \frac{1}{3} \)
(d) \( -\frac{4}{3} \)
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