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If `alpha` and `beta` are the roots of the quadratic equation `ax^2 + bx + c = 0` , then evaluate `lim_(x->1/alpha)sqrt{(1-cos(cx^2 + bx + a))/(2(1- alphax)^2)}`

A

c(a-b)

B

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

C

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

D

`|(1/alpha-1/beta)c/(2alpha)|`

Text Solution

Verified by Experts

The correct Answer is:
D
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