Within the interval

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

Problem

Within the interval 0≤θ<2π0\le \theta<2\pi, how many distinct solutions does the equation sin⁡θ+sin⁡3θ=0\sin\theta+\sin3\theta=0 possess? (a) 6 (b) 2 (c) 4 (d) 5

Related theory

Browse the problem library