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Let alpha and beta be the roots of equat...

Let `alpha` and `beta` be the roots of equation `px^2+qx+r=0,pne0`. If p, q, r are in A.P. and `1/alpha+1/beta`=4, then the value of `abs(alpha-beta)` is :

A

`sqrt34/9`

B

`(2sqrt13)/9`

C

`sqrt61/9`

D

`(2sqrt17)/9`

Text Solution

Verified by Experts

The correct Answer is:
B
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