Math, asked by dupatiupender, 11 months ago

If A,B,C are the interior angles of a triangle ABC , show taht sin(B+C/2) cos A/2 + cos (B+C/2) sinA/2 =1

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Answered by swan030782

1

Answer:

Please refer to the attachments below. The answer is given in parts.

Step-by-step explanation:

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