For any acute angle

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

Problem

For any acute angle θ\theta, what is the value of sin⁡(90∘−θ)\sin(90^\circ-\theta)? (a) tan⁡θ\tan\theta (b) sec⁡θ\sec\theta (c) cos⁡θ\cos\theta (d) sin⁡θ\sin\theta

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