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onegirl
 3 years ago
Find the sum of sin2x and sinx
onegirl
 3 years ago
Find the sum of sin2x and sinx

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CliffSedge
 3 years ago
Best ResponseYou've already chosen the best response.0I don't understand the question. Don't you just add them together since that's what "sum" means?

CliffSedge
 3 years ago
Best ResponseYou've already chosen the best response.0Do you want it only in terms of sin(x)? Here's a list of identities. http://tutorial.math.lamar.edu/pdf/Trig_Cheat_Sheet.pdf

across
 3 years ago
Best ResponseYou've already chosen the best response.0The best you can do is simplify the expression:\[ \sin2x+\sin x\\ 2\sin x\cos x+\sin x\\ \sin x(2\cos x+1) \]
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