There are identities for the sine of sum but are there for sine of product ? Had someone come up with this ? Or is it even possible to rewrite the $sin(a*b)$?
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I haven`t seen the post, link of what you gave. What should I do if my post is a duplicate ? – Юрій Ярош Mar 03 '18 at 22:09
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take a look to the linked OP – user Mar 03 '18 at 22:20
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I had already, thanks for the link. – Юрій Ярош Mar 03 '18 at 22:21
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@gimusi Problem is I don't know how to delete the post – Юрій Ярош Mar 03 '18 at 22:54
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Take a look here https://math.meta.stackexchange.com/questions/24941/how-to-delete-posts-on-the-site – user Mar 03 '18 at 22:55