A Level

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

Problem

Evaluate sin⁡230∘+cos⁡260∘−sin⁡30∘cos⁡60∘tan⁡45∘+tan⁡30∘tan⁡60∘\displaystyle \frac{\sin^{2} 30^\circ + \cos^{2} 60^\circ - \sin 30^\circ \cos 60^\circ}{\tan 45^\circ + \tan 30^\circ \tan 60^\circ}.

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