Mathematics

Mathematics

Problem

The expression 1−cos⁡θsin⁡θ\dfrac{1 - \cos\theta}{\sin\theta} simplifies to a) tan⁡θ\tan\theta b) csc⁡θ−cot⁡θ\csc\theta-\cot\theta c) csc⁡θ+cot⁡θ\csc\theta+\cot\theta d) sec⁡θ−tan⁡θ\sec\theta-\tan\theta

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