If $x = \sqrt{2^{\csc^{-1} t}}$ and $y = \sqrt{2^{\sec^{-1} t}}$ for $|t| \ge 1$,then $\frac{dy}{dx}$ is equal to:

  • A
    $\frac{y}{x}$
  • B
    $-\frac{y}{x}$
  • C
    $-\frac{x}{y}$
  • D
    $\frac{x}{y}$

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