Mathematics Problem.

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Mathematics Problem.

Postby rajas90 » Mon Sep 10, 2012 10:38 am

In a triangle ABC, the line joining the circumcentre and the incentre is parallel to the side BC.
Find cos B + cos C :
1) 3/2
2) 1
3) 3/4
4) 1/2

The problem is from the model papers of Railway Recruitment exam for Sr.Sec. Enggr.
Kindly help as Iam appearing for the exam.

Kindly provide Detailed solution or atleast steps to proceed with the problem.
Thank u.
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