यदि $\tan B = \frac{n \sin A \cos A}{1 - n \cos^2 A}$ है,तो $\tan(A + B)$ का मान ज्ञात कीजिए।

  • A
    $\frac{\sin A}{(1 - n) \cos A}$
  • B
    $\frac{(n - 1) \cos A}{\sin A}$
  • C
    $\frac{\sin A}{(n - 1) \cos A}$
  • D
    $\frac{\sin A}{(n + 1) \cos A}$

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$\theta$ के सभी अनुमेय मानों के लिए $\frac{\sin^2 \theta}{\sin \theta - \cos \theta} - \frac{\sin \theta + \cos \theta}{\tan^2 \theta - 1}$ का मान है:

यदि $\tan \theta = \frac{x \sin \phi}{1 - x \cos \phi}$ और $\tan \phi = \frac{y \sin \theta}{1 - y \cos \theta}$ है,तो $\frac{x}{y} = $

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$\sin \theta + \cos \theta$ का मान कब अधिकतम होगा?

यदि $\sin x + \cos x = a$,$a \in [-\sqrt{2}, \sqrt{2}] - \{-1, 1\}$,तो $\sum_{n=1}^\infty (\sin^n x + \cos^n x)$ का मान ज्ञात कीजिए।

यदि $7 \sin ^{2} \theta+3 \cos ^{2} \theta=4$ है,तो $\tan \theta=$

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