Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If the angle A, B and C of a triangle are in arithmetic progression and if a, b and c denote the lengths of the sides opposite to A, B and C respectively, then the value of the expression 
sin 2C + 
sin 2A is
A
B
C
1
D
Text Solution
Verified by ExpertsThe correct answer is:
D
sin 2C + 
sin 2A = 
(a cos C + c cos A) = 
= 2 sin B = 2 sin 60º = 
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