sin (B-C) / sin B. sin C + sin (C-A) / sin C. sin A + sin (A-B) / sin A. sin B = 0
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3
Answer:
proved
Step-by-step explanation:
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Answered by
3
Step-by-step explanation:
+ +
= + +
= + +
= + +
= + +
= 0
=> + + = 0
Hence proved
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