If A, B and C are interior angles of a triangle ABC, then show that si

1.	If A, B and C are interior angles of a triangle ABC, then show that sin [(B + C)/2] = cos A/2.No Spam❌No irrelevant answers❌s_Gadhi... never aisa ho skta h kya ?
Answer» Answer: BRO YR.. Atleast mujhse TOH BAAT karlo instā pe.. boht urgent hai..

If A, B and C are interior angles of a triangle ABC, then show that sin [(B + C)/2] = cos A/2.No Spam❌No irrelevant answers❌s_Gadhi... never aisa ho skta h kya ?

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BRO YR..

Atleast mujhse TOH BAAT karlo instā pe.. boht urgent hai..

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If A, B and C are interior angles of a triangle ABC, then show that sin [(B + C)/2] = cos A/2.No Spam❌No irrelevant answers❌s_Gadhi... never aisa ho skta h kya ?​

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If A, B and C are interior angles of a triangle ABC, then show that sin [(B + C)/2] = cos A/2.No Spam❌No irrelevant answers❌s_Gadhi... never aisa ho skta h kya ?