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CGP EDU Academic Team
Published on: August 12, 2026
In a triangle ABC, if sin 10A + sin10B + sin10C = λ sin5A sin 5B sin 5C then find λ .
Text Solution
Verified by ExpertsThe correct answer is:
4
(4)
= 2 sin 5 (A + B) cos 5 (A – B) + 2 sin 5C cos 5C.
= 2 sin 5C [cos (5A – 5B) + cos 5C]
= 2 sin 5C [cos (5A – 5B) – cos (5A + 5B)]
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