With Usual notation, in a triangle ABC b+c 11 = c+a 12 = a+b 13 , then the value of B is equal to

MHT CET 2025 Mathematics question

Not in JEE syllabus

With Usual notation, in a triangle ABC , then the value of is equal to

Answer: (C)

Let each ratio be : , , . Adding, . So , , . By the cosine rule, $

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Question ID VK-103346