Which of the following equals for any angle ?

MATHEMATICS · Single correct · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

Which of the following equals tan⁡θ\tan\theta for any angle θ\theta? (a) cos⁡θsin⁡θ\dfrac{\cos\theta}{\sin\theta} (b) sin⁡θ cos⁡θ\sin\theta\,\cos\theta (c) sin⁡θcos⁡θ\dfrac{\sin\theta}{\cos\theta} (d) 1cos⁡θ\dfrac{1}{\cos\theta}

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