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.Sam.Best ResponseYou've already chosen the best response.0
Start by \[\sin(3x)=\sin(2x+x)\] Then use the sum to difference formula
 11 months ago

ShadowysBest ResponseYou've already chosen the best response.0
are there any values setfor this question? sin 3x = cos 3x only when tan 3x =1
 11 months ago

fawad114Best ResponseYou've already chosen the best response.0
but not a complete answer
 11 months ago

ShadowysBest ResponseYou've already chosen the best response.0
oh. okay. sub x=0 into the eq and see what u get
 11 months ago

fawad114Best ResponseYou've already chosen the best response.0
X is a angle not a variable
 11 months ago

ShadowysBest ResponseYou've already chosen the best response.0
In this case, since the question is asking for the [[proof]], not the solution, i don't see how you can get it, without setting the angles into set angles, like \(\frac{\pi}{12}\) rad
 11 months ago

fawad114Best ResponseYou've already chosen the best response.0
i can give you a hint..!
 11 months ago

ShadowysBest ResponseYou've already chosen the best response.0
in the case where you need the solution, sin 3x = sin (903x) and use the general formula, \(3x=n\pi + (1)^n (903x)\)
 11 months ago

ShadowysBest ResponseYou've already chosen the best response.0
that is the solution, not the proof though. So i don't think I gave any help into solving that question. note: \(n \in N\)
 11 months ago

moli1993Best ResponseYou've already chosen the best response.0
u wanna calculate the value of x ?
 11 months ago

fawad114Best ResponseYou've already chosen the best response.0
just find the vale of "X"
 11 months ago

Best_MathematicianBest ResponseYou've already chosen the best response.1
sin 45 = cos 45 sin(3*15) = cos(3*15) so x=15 thus sin3x=cos3x your welcome
 11 months ago
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