निम्नलिखित सर्वसमिकाओं में से कौन सा कथन सत्य है?

  • A
    $\sin 5 \theta = 16 \cos^4 \theta \sin \theta - 12 \cos^2 \theta \sin \theta + \sin \theta$
  • B
    $\sin 5 \theta = 16 \cos^4 \theta - 12 \cos^2 \theta + 1$
  • C
    $\sin 5 \theta = 16 \cos^4 \theta \sin \theta + 12 \cos^2 \theta \sin \theta - \sin \theta$
  • D
    $\sin 5 \theta = 16 \cos^4 \theta \sin \theta + 12 \cos^2 \theta \sin \theta + \sin \theta$

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

$\cot \theta - \tan \theta - 2 \tan 2 \theta - 4 \tan 4 \theta = $

कुछ $a, b, c \in R$ के लिए,यदि $\sin 5 \theta = a \cos^4 \theta \sin \theta + b \cos^2 \theta \sin^3 \theta + c \sin^5 \theta$ है,तो $abc =$

यदि $a \tan \theta = b$ है,तो $a \cos 2\theta + b \sin 2\theta = $

$\cos A \cos 2 A \cos 4 A \ldots \cos 2^{n-1} A$ का मान क्या है?

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