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Let alpha and beta be the distinct roots...

Let `alpha` and `beta` be the distinct roots of `ax^(2) + bx + c = 0` then `underset(x to alpha)(Lt) (1 - cos (ax^(2) + bx + c))/((x - alpha)^(2))` equal to

A

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

B

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

C

0

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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