यदि $\cot \alpha = \frac{1}{2}$ और $\sec \beta = -\frac{5}{3}$,जहाँ $\alpha \in \left(\pi, \frac{3\pi}{2}\right)$ और $\beta \in \left(\frac{\pi}{2}, \pi\right)$ है,तो $\tan(\alpha + \beta)$ का मान ज्ञात कीजिए।

  • A
    $\frac{3}{11}$
  • B
    $\frac{22}{9}$
  • C
    $\frac{9}{11}$
  • D
    $\frac{2}{11}$

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यदि $A=35^{\circ}, B=15^{\circ}$ और $C=40^{\circ}$ है,तो $\tan A \cdot \tan B+\tan B \cdot \tan C+\tan C \cdot \tan A$ का मान ज्ञात कीजिए।

यदि $\tan A = -\frac{1}{2}$ और $\tan B = -\frac{1}{3}$ है,तो $A + B = $

यदि $\theta \in \left(0, \frac{\pi}{2}\right)$ के लिए $\tan 3\theta \cdot \tan 2\theta \cdot \tan \theta + \tan 2\theta + \tan \theta = 1$ है,तो $\theta =$

$\sin \left(\frac{5 \pi}{24}\right) \cdot \cos \left(\frac{\pi}{24}\right)$ का मान है

यदि $\cos 43^{\circ} + \sin 43^{\circ} = k$ है, तो $\cos 2^{\circ}$ का मान ज्ञात कीजिए।

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