निम्नलिखित में से कौन सी संख्या/संख्याएँ परिमेय हैं?

  • A
    $\sin 15^\circ$
  • B
    $\cos 15^\circ$
  • C
    $\sin 15^\circ \cos 15^\circ$
  • D
    $\sin 15^\circ \cos 75^\circ$

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Similar Questions

$\frac{\sin \theta + \sin 2\theta}{1 + \cos \theta + \cos 2\theta} = $

सिद्ध कीजिए कि $\tan 3x \tan 2x \tan x = \tan 3x - \tan 2x - \tan x$.

यदि $\cos \theta = \frac{-3}{5}$ और $\pi < \theta < \frac{3\pi}{2}$ है,तो $\tan \frac{\theta}{2} + \sin \frac{\theta}{2} + 2 \cos \frac{\theta}{2} =$

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:

$\tan \left(\frac{7 \pi}{8}\right)$ का मान है

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