$x$ के सापेक्ष निम्नलिखित का अवकलन कीजिए: $e^{\cos x}$

  • A
    $e^{\cos x} \sin x$
  • B
    $-e^{\cos x} \sin x$
  • C
    $e^{\cos x} \cos x$
  • D
    $-e^{\cos x} \cos x$

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