Which of the following lists all solutions of in the interval ?

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Which of the following lists all solutions of sin⁡x=12\sin x = \dfrac{1}{2} in the interval 0∘≤x<360∘0^\circ \le x < 360^\circ? (a) 30∘,  210∘30^\circ,\;210^\circ (b) 60∘,  300∘60^\circ,\;300^\circ (c) 30∘,  150∘30^\circ,\;150^\circ (d) 150∘,  330∘150^\circ,\;330^\circ

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