1.

In any Δ ABC, prove that (b2−c2)a2 sin 2A+(c2−a2)b2 sin 2B+(a2−b2)c2 sin 2C=0

Answer»

In any Δ ABC, prove that

(b2c2)a2 sin 2A+(c2a2)b2 sin 2B+(a2b2)c2 sin 2C=0



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