$2\sin A\cos^3 A - 2\sin^3 A\cos A = $

  • A
    $\sin 4A$
  • B
    $\frac{1}{2}\sin 4A$
  • C
    $\frac{1}{4}\sin 4A$
  • D
    इनमें से कोई नहीं

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Similar Questions

यदि $\sin^3 x \sin 3x = \sum_{m=0}^n c_m \cos mx$ है,जहाँ $c_0, c_1, c_2, \dots, c_n$ स्थिरांक हैं और $c_n \neq 0$,तो $n$ का मान ज्ञात कीजिए।

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$\cos \frac{\pi}{2^2} \cdot \cos \frac{\pi}{2^3} \cdot \cos \frac{\pi}{2^4} \cdots \cos \frac{\pi}{2^{10}} = $

$\frac{\sec 8A - 1}{\sec 4A - 1} = $

सिद्ध कीजिए कि: $\cos 4x = 1 - 8 \sin^2 x \cos^2 x$

यदि $\sin \theta = \frac{3}{5}$ और $\theta$ प्रथम चतुर्थांश में नहीं है,तो $15 \sin 2 \theta - 20 \cos 2 \theta - 7 \tan 2 \theta = $

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