Which of the following is equal to ?

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

Problem

Which of the following is equal to sin⁡(90∘−θ)\sin(90^\circ-\theta)? (a) −cos⁡θ-\cos\theta (b) sin⁡θ\sin\theta (c) cos⁡θ\cos\theta (d) tan⁡θ\tan\theta

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