Solve , where…

MATHEMATICS · Subjective · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Solve 2cos⁡2θ+sin⁡θ≤22\cos^2\theta+\sin\theta\leq2, where π2≤θ≤3π2\frac{\pi}{2}\leq\theta\leq\frac{3\pi}{2}.

Related theory

Browse the problem library