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Ivan Raich

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20 years, 10 days
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Expanding trig functions...

Ivan Raich 24 Maple
November 26 2007
6 16
Can anybody help me how to convert (in both directions) the sums of trig functions like sin A + sin B = 2 sin ½(A + B) cos ½(A - B) Simple expand and combine commadns do not work in this case.
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