गुणनफल $(1+\tan 1^{\circ})(1+\tan 2^{\circ})(1+\tan 3^{\circ}) \dots (1+\tan 45^{\circ})$ का मान क्या है?

  • A
    $2^{21}$
  • B
    $2^{22}$
  • C
    $2^{23}$
  • D
    $2^{25}$

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यदि $\sin x + \sin y = \frac{\sqrt{3}+1}{2}$ और $\cos x + \cos y = \frac{\sqrt{3}-1}{2}$ है,तो $\tan^2 \left(\frac{x-y}{2}\right) + \tan^2 \left(\frac{x+y}{2}\right) = $

मान लीजिए $S$ उन सभी $\alpha \in \mathbb{R}$ का समुच्चय है जिनके लिए समीकरण $\cos 2x + \alpha \sin x = 2\alpha - 7$ का एक हल है। तो $S$ किसके बराबर है?

$\frac{\sin 3A - \cos \left( \frac{\pi}{2} - A \right)}{\cos A + \cos (\pi + 3A)} = $

यदि $(\sec \alpha + \tan \alpha )(\sec \beta + \tan \beta )(\sec \gamma + \tan \gamma ) = \tan \alpha \tan \beta \tan \gamma $ है,तो $(\sec \alpha - \tan \alpha )(\sec \beta - \tan \beta )(\sec \gamma - \tan \gamma ) = $

$2 \sin \left(\frac{\pi}{22}\right) \sin \left(\frac{3 \pi}{22}\right) \sin \left(\frac{5 \pi}{22}\right) \sin \left(\frac{7 \pi}{22}\right) \sin \left(\frac{9 \pi}{22}\right)$ का मान ज्ञात कीजिए।

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