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$\sqrt{\frac{1+sin\theta}{1-sin\theta}}+\sqrt{\frac{1-sin\theta}{1+sin\theta}}$ is equal to1). $2 cos\theta$2). $2 sin\theta$3). $2 cot\theta$4). $2 sec\theta$ |
Answer» This question was ASKED some where in previous year PAPERS of SSC, and correct answer was $2 sec\theta$ |
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