Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If the roots of 
are in A.P., then their common difference, is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
We are given the cubic:
with roots in A.P.
Step 1: Represent roots in A.P.
Let the roots be:
Sum of roots: 
Step 2: Use sum of products of roots two at a time
Vieta: 
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