Prove that .

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

Prove that tan⁡θ+sec⁡θ−1tan⁡θ−sec⁡θ+1=1+sin⁡θcos⁡θ\frac{\tan\theta+\sec\theta-1}{\tan\theta-\sec\theta+1}=\frac{1+\sin\theta}{\cos\theta}.

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