यदि $\theta \in \left[-\frac{\pi}{2}, \frac{\pi}{2}\right]$ के लिए $2 \cos \theta + \sin \theta = 1$ और $7 \cos \theta + 6 \sin \theta = k$ है,तो $k$ के संभावित मान क्या हैं?

  • A
    $8, -2$
  • B
    $6, 2$
  • C
    $12, 4$
  • D
    $7, 6$

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Similar Questions

$0 < \theta < \frac{\pi}{2}$ के लिए,$\sum_{m=1}^6 \operatorname{cosec}\left(\theta+\frac{(m-1) \pi}{4}\right) \operatorname{cosec}\left(\theta+\frac{m \pi}{4}\right) = 4 \sqrt{2}$ के हल हैं:

$\frac{1+\cos \theta-\sin \theta}{1+\cos \theta+\sin \theta}+\frac{1+\cos \theta+\sin \theta}{1+\cos \theta-\sin \theta}=$

यदि $(1 + \sin A)(1 + \sin B)(1 + \sin C) = (1 - \sin A)(1 - \sin B)(1 - \sin C)$ है,तो प्रत्येक पक्ष किसके बराबर है?

$\cos ^4 \frac{\pi}{12} + \cos ^4 \frac{5 \pi}{12} + \cos ^4 \frac{7 \pi}{12} + \cos ^4 \frac{11 \pi}{12} = $

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) = $

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