A Level

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

Problem

Simplify [csc⁡2(90∘−θ)−cot⁡2(90∘−θ)] (sec⁡2θ−tan⁡2θ)\big[\csc^2(90^\circ-\theta)-\cot^2(90^\circ-\theta)\big] \,(\sec^2\theta-\tan^2\theta). (a) tan⁡2θ\tan^2\theta (b) 11 (c) 00 (d) −1-1

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