निरीक्षण विधि द्वारा फलन $\sin 2x - 4e^{3x}$ का प्रति-अवकलज (या समाकल) ज्ञात कीजिए।

  • A
    $-\frac{1}{2} \cos 2x - \frac{4}{3} e^{3x}$
  • B
    $-\frac{1}{2} \cos 2x + \frac{4}{3} e^{3x}$
  • C
    $\frac{1}{2} \cos 2x - \frac{4}{3} e^{3x}$
  • D
    $\frac{1}{2} \cos 2x + \frac{4}{3} e^{3x}$

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$\int {{x^x}(1 + \ln x)dx} $ का मान ज्ञात कीजिए :-

$\int \frac{f'(x)}{[f(x)]^2} \, dx = $

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$\int \frac{1}{x^2} (2x + 1)^3 dx = $

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?

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