यदि $0 < \theta < \frac{\pi}{2}$ और $\tan 3 \theta \neq 0$ है, तो $\tan \theta + \tan 2 \theta + \tan 3 \theta = 0$ होगा यदि $\tan \theta \cdot \tan 2 \theta = k$, जहाँ $k =$

  • A
    $1$
  • B
    $2$
  • C
    $3$
  • D
    $4$

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Similar Questions

${\left( \frac{\cos A + \cos B}{\sin A - \sin B} \right)^n} + {\left( \frac{\sin A + \sin B}{\cos A - \cos B} \right)^n}$ ($n$ एक पूर्णांक है) $=$

$\sinh ^{-1} 2 + \sinh ^{-1} 3 = x \Rightarrow \cosh x$ का मान ज्ञात कीजिए।

$\frac{\sqrt{2}-\sin \alpha-\cos \alpha}{\sin \alpha-\cos \alpha}=$

$\cos ^3\left(\frac{\pi}{8}\right) \cos \left(\frac{3 \pi}{8}\right)+\sin ^3\left(\frac{\pi}{8}\right) \sin \left(\frac{3 \pi}{8}\right) = $

यदि $x=-\frac{1}{2}$ है,तो $\sinh ^{-1} x+\operatorname{cosech}^{-1} x=$

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