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Let alpha,beta and gamma be the roots of...

Let `alpha,beta and gamma` be the roots of the equation `x^(3)+6x^(2)-px-42=0`. If `alpha, beta and gamma` are in arithmetic progression then `|alpha|+|beta|+|gamma|=`

A

10

B

11

C

12

D

13

Text Solution

Verified by Experts

The correct Answer is:
C
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