यदि $y = \sec(\tan^{-1}x)$ है,तो $\frac{dy}{dx}$ है

  • A
    $\frac{x}{\sqrt{1 + x^2}}$
  • B
    $\frac{-x}{\sqrt{1 + x^2}}$
  • C
    $\frac{x}{\sqrt{1 - x^2}}$
  • D
    इनमें से कोई नहीं

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$\frac{d}{dx} \left( \frac{2 \tan x}{1 + \tan^2 x} \right) = $ . . . . . .

यदि $f(x)=|x-1|+|x-2|$ है, तो $f^{\prime}(-2023)+f^{\prime}\left(\frac{2024}{2023}\right)+f^{\prime}(2023)=$

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