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

myininayaBest ResponseYou've already chosen the best response.1
Recall 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)
 one year ago

softballislove3Best ResponseYou've already chosen the best response.0
i was thinking that but i wasnt sure
 one year ago

softballislove3Best ResponseYou've already chosen the best response.0
now all the options i am given have exponents in them how is that possible
 one year ago

siddhantsharanBest ResponseYou've already chosen the best response.1
That will be the case. sin2x is 2sinxcosx.
 one year ago

softballislove3Best ResponseYou've already chosen the best response.0
i dont understand...
 one year ago
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