Q.The solution of $\sin 2x + \cos x + \sin x = 0$ in $[0, 2\pi]$ has how many solutions?

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.The solution of sin⁡2x+cos⁡x+sin⁡x=0\sin 2x + \cos x + \sin x = 0sin2x+cosx+sinx=0 in [0,2π][0, 2\pi][0,2π] has how many solutions?