Mathematics, 29.03.2021 04:50 AutumnJoy12
* Conditional Trigonometry IF A + B + C = 180° prove that : Sin²A/2 + Sin²B/2 - Sin²C/2 = 1 - 2CosA/2.CosB/2.SinC/2
Answers: 3
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* Conditional Trigonometry IF A + B + C = 180° prove that : Sin²A/2 + Sin²B/2 - Sin²C/2 = 1 - 2CosA/...
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