Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If in a triangle ABC, a cos 2 
+ c cos 2 
= 
, then the sides a, b and c :
Text Solution
Verified by ExpertsThe correct answer is:
A
a 
= 
⇒ 
= 
⇒ a + b + c = 3b.
⇒ a + c = 2b
⇒ a, b, c are in A.P.
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