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Question Number 15264 by Tinkutara last updated on 08/Jun/17

$$\mathrm{The}\mathrm{solution}\mathrm{set}\mathrm{of}\mathrm{inequation}$$$$\cos x+\frac{1}{2}⩾0\mathrm{is}[-\pi ,\pi ]$$$$\left(1\right)[0,\frac{2\pi }{3}]$$$$\left(2\right)[-\frac{2\pi }{3},\frac{2\pi }{3}]$$$$\left(3\right)[0,\frac{\pi }{2}]$$$$\left(4\right)[-\frac{\pi }{2},\frac{3\pi }{2}]$$

Answered by mrW1 last updated on 08/Jun/17

$$\mathrm{answer}\left(2\right)$$

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