Math, asked by msan70059, 5 months ago

5. If A+B+C=180° prove that sin?A + sin? B+ sin?c = 2 +2 cos A COSB cos C

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Answered by kanikanish050

Answer:

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5. If A+B+C=180° prove that sin?A + sin? B+ sin?c = 2 +2 cos A COSB cos C​

Answers

5. If A+B+C=180° prove that sin?A + sin? B+ sin?c = 2 +2 cos A COSB cos C