Music, asked by vishalkarenu9, 8 months ago

6. If A, B and C are interior angles of a triangle ABC, then show that
A
sin
B + C
2.
COS
2

Answers

Answered by baluponnusamy83

0

Answer:

Click here to get an answer to your question ✍️ If A, B and C are interior angles of a triangle ABC, then show that sin ( B + C2 ) = cos A2

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