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Question Number 147134 by mathdanisur last updated on 18/Jul/21

$$\sqrt{2sin\left(x\right)-1}\cdot sin\left(x\right)>0$$

Commented byhknkrc46 last updated on 18/Jul/21

$$▸2\sin \mathit{x}-1>0\wedge \sin \mathit{x}>0$$ $$\Rightarrow \sin \mathit{x}>\frac{1}{2}\wedge \sin \mathit{x}>0\equiv \sin \mathit{x}>\frac{1}{2}$$ $$▸\frac{\mathit{\pi }}{6}<\mathit{x}<\frac{5\mathit{\pi }}{6}$$

Commented bymathdanisur last updated on 18/Jul/21

$$thanksSir$$

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