यदि \( \frac{3 \pi}{4}\alpha\pi \) हो, तो \( \sqrt{\operatorname{cosec}^{2} \alpha+2 \cot \alpha...
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यदि \( \frac{3 \pi}{4}\alpha\pi \) हो, तो \( \sqrt{\operatorname{cosec}^{2} \alpha+2 \cot \alpha} \) का मान है
(A) \( 1+\cot \alpha \)
(B) \( 1-\cot \alpha \)
(C) \( -1-\cot \alpha \)
(D) \( -1+\cot \alpha \)
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