જો $y = \sin^{n} x \cos nx$ હોય,તો $\frac{dy}{dx}$ શું થાય?

  • A
    $n \sin^{n-1} x \sin (n+1) x$
  • B
    $n \sin^{n-1} x \cos (n-1) x$
  • C
    $n \sin^{n-1} x \cos nx$
  • D
    $n \sin^{n-1} x \cos (n+1) x$

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