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Question: Maple, please apply a Trig Identity

Question:Maple, please apply a Trig Identity

Oliver K 1201 Maple
June 08 2010
1

I guess this is trivial, i just want Maple to apply the convert-to-product-rule:

sin(x)+sin(y)=2*sin((x+y)/2)*cos((x-y)/2)

 

i typed in sin(x)+sin(x+Pi/3) and looked for some related command in the context menu, but expand,combine or simplify or else didn't work.  What did i miss ?
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