माना कि α और β, \(a x^{2}+b x+c=0\) के भिन्न मूल हैं, तब \(\lim _{x \rightarrow \alpha} \frac{1-\cos \left(a x^{2}+b x+c\right)}{(x-\alpha)^{2}}\) किसके बराबर है?

1
\(\frac{a^{2}(\alpha-\beta)^{2}}{2}\)
2
\(\frac{(\alpha-\beta)^{2}}{2}\)
3
\(\frac{-a^{2}(\alpha-\beta)^{2}}{2}\)
4
0

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