Let alpha and beta be the roots of ax^(2...

Let `alpha` and `beta` be the roots of `ax^(2) + bx + c=0`, then `lim_(x to alpha) (1- cos(ax^(2) + bx +c))/(x-alpha)^(2)` is euqal to:

A

0

B

`(1)/(2)(alpha-beta)^(2)`

C

`(a^(2))/(2)(alpha-beta)^(2)`

D

`-(a^(2))/(2)(alpha-beta)^(2)`

Verified by Experts

The correct Answer is:

C

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