For , evaluate…

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

Problem

For θ=30∘\theta=30^\circ, evaluate 1−cos⁡2θsin⁡θ cos⁡θ\dfrac{1-\cos^2\theta}{\sin\theta\,\cos\theta}. (a) 3\sqrt3 (b) 13\dfrac1{\sqrt3} (c) 23\dfrac{2}{\sqrt3} (d) 2

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