In a triangle ABC with usual notations if A = 30^0, then the value of (1+ a c + b c ) (1+ c b - a b ) =

MHT CET 2025 Mathematics question

Not in JEE syllabus

In a triangle ABC with usual notations if , then the value of

Answer: (C)

Write each bracket over a common denominator: and . The product is . By the cosine rule $+-=2bc

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Question ID VK-103016