यदि $\int \frac{x + 1}{x^2 + 1} dx = \tan^{-1} x + g(x) + c$, जहाँ $c$ समाकलन स्थिरांक है, तो फलन $g(x)$ किस अंतराल में वर्धमान (monotonically increasing) है?

  • A
    $R^+$
  • B
    $R^-$
  • C
    $R$
  • D
    $R - \{0\}$

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यदि $\int [ \cos(x) \cdot \frac{d}{dx}(\csc(x)) ] dx = f(x) + g(x) + c$ है,तो $f(x) \cdot g(x) =$

फलन का समाकलन कीजिए: $\frac{e^{5 \log x}-e^{4 \log x}}{e^{3 \log x}-e^{2 \log x}}$

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