यदि $y = \log_e \tan \left(\frac{\pi}{4} + \frac{x}{2}\right)$ है,तो $\tanh \left(\frac{y}{2}\right) = $

  • A
    $\cot \frac{x}{2}$
  • B
    $\tan x$
  • C
    $\coth x$
  • D
    $\tan \frac{x}{2}$

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$\frac{\sqrt{3} \sin \theta + \cos \theta}{\sin \left(\theta + \frac{\pi}{6}\right)} = $

यदि $\sin (A + B) = 1$ और $\cos (A - B) = \frac{\sqrt{3}}{2}$ है,तो $A$ और $B$ के सबसे छोटे धनात्मक मान ज्ञात कीजिए।

यदि $5 \tan \theta = 4$ है,तो $\frac{5 \sin \theta - 3 \cos \theta}{5 \sin \theta + 2 \cos \theta} = $

$\sin \left(\frac{5 \pi}{3}\right) + \sec \left(\frac{13 \pi}{3}\right) = $

$\cot (45^\circ + \theta ) \cot (45^\circ - \theta ) = $

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