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sin 2 A + sin 2 B + sin 2 C – 4cos A × cos B × cos C = 4 , Prove it.

sin2 A + sin2 B + sin2 C – 4cos A × cos B × cos C = 4 , Prove it.
 

Grade:11

1 Answers

SJ
askIITians Faculty 97 Points
3 years ago
Dear student
PFA


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