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	`sinA+sinB+sinC=4cos(A/2)cos(B/2)cos(C/2)` (Doubtnut) View
	sin⁡A+sin⁡B+sin⁡C=4 cos⁡(A/2)cos⁡(B/2)cos⁡(C/2), cos⁡A+cos⁡B+cos⁡C=1+ 4 sin⁡(A/2)sin⁡(B/2)sin⁡(C/2) (vikram angala) View
	Proof of SinA+SinB+SinC=4.Cos(A/2).Cos(B/2).Cos(C/2). (LUNJAPAO BAITE) View
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	Prove that SinA+SinB+SinC=4.CosA/2.CosB/2.CosC/2 \|\|trigonometry upto Transformations chapter (Maths Tutorials Telugu•1.1M) View
	sina+sinb+sinc equal 4cosa/2.Cosb/2.Cosc/2@Mathby1069 (Sharma study point) View
	Theorem 4 :If `A+B+C=pi` then prove that `sinA+sinB+sinC=4cos(A/2)cos(B/2)cos(C/2)` (Doubtnut) View
	82Trigonometry If A+B+C = π thenshowthat SinA + SinB - SinC = 4 Sin (A/2).Sin (B/2).Cos (C/2) (AIMSDARETOSUCCESS) View