If - is a repeated root of ax2-bx-c-0 then limx-tanax2-bx-c-x-2-

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Sufficient Condition for an Extrema

If α is a r...

Question

If $α$ is a repeated root of $a x^{2} + b x + c = 0$ then $lim x \to α \frac{tan (a x^{2} + b x + c)}{(x - α)^{2}} =$

a

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b

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c

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0

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