यदि $\frac{\tan 3A}{\tan A} = a$ है,तो $\frac{\sin 3A}{\sin A}$ का मान ज्ञात कीजिए।

  • A
    $\frac{2a}{a+1}$
  • B
    $\frac{2a}{a-1}$
  • C
    $\frac{a}{a+1}$
  • D
    $\frac{a}{a-1}$

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$\frac{\sec 8A - 1}{\sec 4A - 1} = $

यदि $\sin(\frac{\pi}{18}) \sin(\frac{5\pi}{18}) \sin(\frac{7\pi}{18}) = K$ है, तो $\sin(\frac{10K\pi}{3})$ का मान ज्ञात कीजिए:

यदि $\frac{\sec 8\theta - 1}{\sec 4\theta - 1} = \frac{a + b \tan^2 2\theta}{1 + c \tan^2 2\theta + d \tan^4 2\theta}$ (जहाँ $\theta \neq \frac{n\pi}{16}, n \in I$),तो $(a - b + c - d)$ का मान ज्ञात कीजिए।

यदि $\theta$ दूसरे चतुर्थांश में स्थित नहीं है और $\tan \theta = \frac{-3}{4}$ है,तो $\tan \frac{\theta}{2} + \sin 2 \theta =$

$\frac{1}{\tan 3A - \tan A} - \frac{1}{\cot 3A - \cot A} = $

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