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If A+B+C=π Prove that sinA/2+sinB/2+sinC/2=1+4sin(π-A/4)sin(π-B/4)sin(π-C/4)

If A+B+C=π Prove that sinA/2+sinB/2+sinC/2=1+4sin(π-A/4)sin(π-B/4)sin(π-C/4)

Grade:12th pass

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4407 Points
4 years ago
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