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

Shadowys Group TitleBest ResponseYou've already chosen the best response.0
are there any values setfor this question? sin 3x = cos 3x only when tan 3x =1
 one year ago

fawad114 Group TitleBest ResponseYou've already chosen the best response.0
but not a complete answer
 one year ago

fawad114 Group TitleBest ResponseYou've already chosen the best response.0
wrong SHADOWYS
 one year ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.0
oh. okay. sub x=0 into the eq and see what u get
 one year ago

fawad114 Group TitleBest ResponseYou've already chosen the best response.0
X is a angle not a variable
 one year ago

Shadowys Group TitleBest 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
 one year ago

fawad114 Group TitleBest ResponseYou've already chosen the best response.0
i can give you a hint..!
 one year ago

Shadowys Group TitleBest 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, \(3x=n\pi + (1)^n (903x)\)
 one year ago

Shadowys Group TitleBest 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: \(n \in N\)
 one year ago

moli1993 Group TitleBest ResponseYou've already chosen the best response.0
u wanna calculate the value of x ?
 one year ago

fawad114 Group TitleBest ResponseYou've already chosen the best response.0
just find the vale of "X"
 one year ago

Best_Mathematician Group TitleBest 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
 one year ago
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