Natenatoor
New member
- Joined
- Mar 24, 2021
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The Question is:
If A, B and C are successive terms in an arithmetic series, prove that
sin A + sin C = 2 sin B cos(B-A)
Thanks in advance.
If A, B and C are successive terms in an arithmetic series, prove that
sin A + sin C = 2 sin B cos(B-A)
Thanks in advance.