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

The solution set of inequation

\cos x + \frac{1}{2} ⩾ 0 is [- π, π]

(1) [0, \frac{2 π}{3}]

(2) [- \frac{2 π}{3}, \frac{2 π}{3}]

(3) [0, \frac{π}{2}]

(4) [- \frac{π}{2}, \frac{3 π}{2}]

Answered by mrW1 last updated on 08/Jun/17

answer (2)

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