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Mathematics, 06.11.2020 17:30 lauren203
Sin A+sin B= 2 sin (A+B/2) cos(A-B/2). Use only the right side to answer and in 10 steps
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Sin A+sin B= 2 sin
(A+B/2) cos(A-B/2). Use only the right side to answer and in 10 steps...
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