Question

50)If Cos (A -B) + Cos (B – C) + Cos (C – A) = −3 2 . Prove that Cos A + Cos B+ Cos C = 0 = Sin A + Sin B +Sin C

Answer 1

Step-by-step explanation:

Cos (A -B) + Cos (B – C) + Cos (C – A) = −3 2 . Prove that Cos A + Cos B+ Cos C = 0 = Sin A + Sin B +Sinbody bgcolor =white > < marquee direction =down > < font color =pink > don't post irrelevant question ❤️..

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