The question is :
$4\sin(x) - 3\sin(2x)=0$, find in terms of degrees the general solution to that equation.
I got $\sin(x)=0$ and $2 - 3\cos x=0$
From this I then get $180n, 48.19 + 360n, 311.81 + 360n \text { (to 2 decimal places)}$
However, the answers are $180k, 48.19 + 360n , -48.19 + 360n \text { (to 2 decimal places)}$,
I was wondering why am I incorrect? I was also wondering why is one of the constants different to the rest ($k$ and then $n$)
The two answers are identical: $311.81=360 - (48.19)$.