JEE Mains Model Paper 9

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Question : 76 of 90

Marks: +1, -0

Let α and β be the distinct roots of ax2 + bx + c = 0, then

lim

x→α

1−cos(ax2+bx+c)

(x−α)2

is equal to

0
a2
2
(α−β)2
1
2
(α−β)2
−
a2
2
(α−β)2

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