यदि $\int e^{\alpha x}\left(\frac{1-\beta \sin x}{1-\cos x}\right) d x=-e^x \cot \frac{x}{2}+c$ है, तो $\frac{\alpha^2+\beta^2}{2 \alpha \beta}=$

  • A
    -$1$
  • B
    $1$
  • C
    $2$
  • D
    -$2$

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यदि $f(x) = \frac{1}{\log x}$ और $g(x) = \frac{1}{(\log x)^2}$ है, तो $\int [f(x) - g(x)] dx$ का मान है...

$\int {{e^x}\sin x(\sin x + 2\cos x)} \,dx = $

$\int \frac{3^x(x \log 3-1)}{x^2} d x=$

$\int {{e^x}\left( {\frac{{1 - \sin x}}{{1 - \cos x}}} \right)\,dx} $ का मान ज्ञात कीजिए।

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