व्यंजक $\frac{\tan(x - \frac{\pi}{2}) \cdot \cos(\frac{3\pi}{2} + x) - \sin^3(\frac{7\pi}{2} - x)}{\cos(x - \frac{\pi}{2}) \cdot \tan(\frac{3\pi}{2} + x)}$ का सरलीकृत रूप क्या है?

  • A
    $\sin x \cos x$
  • B
    $-\sin^2 x$
  • C
    $-\sin x \cos x$
  • D
    $\sin^2 x$

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