If alpha, beta, gamma are the roots of t...

If `alpha, beta, gamma` are the roots of the equation `x^3+4x+1=0`, then
`(alpha+beta)^(-1)+(beta+gamma)^(-1)+(gamma+alpha)^(-1)` is equal to :

A

2

B

3

C

4

D

5

Verified by Experts

The correct Answer is:

C

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