$3\left[ \sin^4\left( \frac{3\pi}{2} - \alpha \right) + \sin^4(3\pi + \alpha) \right] - 2\left[ \sin^6\left( \frac{\pi}{2} + \alpha \right) + \sin^6(5\pi - \alpha) \right] = $

  • A
    $0$
  • B
    $1$
  • C
    $3$
  • D
    $\sin 4\alpha + \sin 6\alpha$

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Similar Questions

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यदि $\sin \beta$,$\sin \alpha$ और $\cos \alpha$ के बीच का गुणोत्तर माध्य है,तो $\cos 2\beta$ किसके बराबर है?

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