sin(b)*sin(a+(1/2)*b) =sin(a)*sin((1/2)*a+b)=sin(b+a)*cos((a-b)*(1/2))
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From: M.A.Fajjal on 13 Aug 2010 07:33 How many exact possible solution for sin(b)*sin(a+(1/2)*b) = sin(a)*sin((1/2)*a+b)=sin(b+a)*cos((a-b)*(1/2)) The solutions are not important. But the number of solutions How to confirm this number
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