# trig

Prove that, in general, sin(alpha + beta) does not equal sin alpha + sin beta

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1. all you need is a single couterexample to show it DOES NOT work

so pick 30 and 60
to show sin(30+60) is not equal to sin30 + sin 60
is sin90 = sin30 + sin60 ??

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posted by Reiny

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