The number of roots of in is

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

Problem

The number of roots of ∣sin⁡x∣=x+∣x∣|\sin x|=x+|x| in [−π,π][-\pi,\pi] is (1) 2 (2) 3 (3) 4 (4) 6

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