Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If in a triangle ABC, the line joining the circumcentre and incentre is parallel to BC, then
cos B + cos C is equal to :
Text Solution
Verified by ExpertsThe correct answer is:
B
R cos A = r
R cos A = 4 R sin 
sin 
sin 
cos A = cos A + cos B + cos C – 1
cos B + cos C = 1
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