Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Sides of a triangle ABC are in A.P.. If a < minimum {b, c},
then cos A may be equal to-
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, d)
Sides are in A.P. and a < minimum {b, c}
⇒ Order of A.P. can be b, c, a , or c, b, a
Case - I :
If 2c = a + b
cos A = 
= 
= 
Case - II :
If 2b = a + c
cos A = 
= 
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