If 0, le ,x,

Question

$\sin \,x - \sin \,2x\, + \,\sin \,3x\, = \,0$

$ \Rightarrow \,(\sin \,x + \,\sin \,3x)\, - \,\sin \,2x\, = \,0$

$ \Rightarrow \,2\,\sin x.\,\co

Vedclass · Accepted Answer

$2$

Vedclass · Answer

$\sin \,x - \sin \,2x\, + \,\sin \,3x\, = \,0$

$ \Rightarrow \,(\sin \,x + \,\sin \,3x)\, - \,\sin \,2x\, = \,0$

$ \Rightarrow \,2\,\sin x.\,\cos \,x\, - \,\sin \,2x\, = \,0$

$ \Rightarrow \,\sin \,2x\,(2\cos x\, - \,1)\, = \,0$

$ \Rightarrow \,\sin \,2x\, = \,0$   or  $\cos \,x\, = \frac{1}{2}\,\, \Rightarrow \,x\, = 0\,,\,\frac{\pi }{3}$

If $0\, \le \,x\, < \frac{\pi }{2},$ then the number of values of $x$ for which $sin\,x -sin\,2x + sin\,3x=0,$ is

Similar Questions

The number of distinct solutions of $\sec \theta \,\, + \,\,\tan \theta \, = \,\sqrt 3 \,,\,0\,\, \leqslant \,\,\theta \,\, \leqslant \,\,2\pi$

If $\sin 2\theta = \cos \theta ,\,\,0 < \theta < \pi $, then the possible values of $\theta $ are

If $\sin (A + B) =1 $ and $\cos (A - B) = \frac{{\sqrt 3 }}{2},$ then the smallest positive values of $A$ and $ B$ are

If $L=\sin ^{2}\left(\frac{\pi}{16}\right)-\sin ^{2}\left(\frac{\pi}{8}\right)$ and $M=\cos ^{2}\left(\frac{\pi}{16}\right)-\sin ^{2}\left(\frac{\pi}{8}\right),$ then

The solution of the equation $\sec \theta - {\rm{cosec}}\theta = \frac{4}{3}$ is