$\sin ^6(\theta) + \cos ^6(\theta) + 3 \sin ^2(\theta) \cos ^2(\theta)$ का मान क्या है?

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $3$

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कथन $(S1): \sin 55^{\circ} + \sin 53^{\circ} - \sin 19^{\circ} - \sin 17^{\circ} = \cos 2^{\circ}$.
कथन $(S2): \frac{1}{3 - \cos 2x}$ का परिसर $\left[\frac{1}{4}, \frac{1}{2}\right]$ है।
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