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❌kar v kya skta hu mai (-_-\|\|)Hhh... bol le
Answer» ANSWER: Oyee BRO kaichai HO ? Kkrh ? Btw LEFT Kyu ? Kya hua ? Nikhil KIDHAR mar gya ?

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❌kar v kya skta hu mai (-_-||)Hhh... bol le

Answer»

ANSWER:

Oyee BRO kaichai HO ?

Kkrh ?

Btw LEFT Kyu ?

Kya hua ?

Nikhil KIDHAR mar gya ?

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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❌kar v kya skta hu mai (-_-||)Hhh... bol le ​

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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❌kar v kya skta hu mai (-_-||)Hhh... bol le