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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, 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

`(sqrt61)/(9)`

B

`(2 sqrt17)/(9)`

C

`(sqrt34)/(9)`

D

`(2 sqrt13)/(9)`

Text Solution

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The correct Answer is:
D
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