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siddhantsharan
 2 years ago
Best ResponseYou've already chosen the best response.1Hint: Expand sin3x by writing it as : sin(x+2x)

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.1Recall 3x=2x+x So sin(3x)=sin(x+2x) Use the formula sin(u+v)=sin(u)cos(v)+sin(v)cos(u) to expand sin(x+2x)

softballislove3
 2 years ago
Best ResponseYou've already chosen the best response.0i was thinking that but i wasnt sure

softballislove3
 2 years ago
Best ResponseYou've already chosen the best response.0now all the options i am given have exponents in them how is that possible

siddhantsharan
 2 years ago
Best ResponseYou've already chosen the best response.1That will be the case. sin2x is 2sinxcosx.

softballislove3
 2 years ago
Best ResponseYou've already chosen the best response.0i dont understand...
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