$(1+\cot A)^{2}+(1-\cot A)^{2}$ का मान क्या है?

  • A
    $2 \operatorname{cosec}^{2} A$
  • B
    $2 \operatorname{sec}^{2} A$
  • C
    $1-2 \operatorname{cosec}^{2} A$
  • D
    $1-2 \sec ^{2} A$

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यदि $\frac{3\pi}{4} < \alpha < \pi$ है,तो $\sqrt{\csc^2 \alpha + 2\cot \alpha}$ का मान ज्ञात कीजिए।

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यदि $\theta$ प्रथम चतुर्थांश में है और $\tan \theta = \frac{3}{4}$ है,तो $\frac{\tan \left(\frac{\pi}{2}-\theta\right)-\sin (\pi-\theta)}{\sin \left(\frac{3 \pi}{2}+\theta\right)-\cot (2 \pi-\theta)} = $

यदि $\sec A = a + \left(\frac{1}{4a}\right)$ है,तो $\sec A + \tan A =$

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