Let alpha and beta be the roots of ...

Let `alpha and beta ` be the roots of equation `px^2 +qx+r =0 , p ne 0, ` if p,q, r are in A.P and `(1)/ alpha +(1)/( beta ) =4 ` then the value of ` | alpha - beta |` is

A

`(sqrt(34))/(9)`

B

`(2sqrt(13))/(9)`

C

`(sqrt(61))/(9)`

D

`(2sqrt(17))/(9)`

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Verified by Experts

The correct Answer is:

B

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