Compute the derivative of $g(x) = \cot x$.

  • A
    $-\csc^2 x$
  • B
    $\csc^2 x$
  • C
    $-\sec^2 x$
  • D
    $\sec^2 x$

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$\left\{\frac{d}{d x}\left(x^x+x^{x+1}+x^{x+2}\right)\right\}_{x=e} = \text{?}$

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