यदि $\int \frac{3-x^2}{1-2 x+x^2} e^x d x=e^x f(x)+c$ है, तो $f(x)$ क्या है?

  • A
    $\frac{1+x}{1-x}$
  • B
    $\frac{1-x}{1+x}$
  • C
    $\frac{1+x}{x-1}$
  • D
    $\frac{x-1}{1+x}$

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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 $\frac{\alpha^2+\beta^2}{2 \alpha \beta}=$

$\frac{dy}{dx} = e^x(\sin x + \cos x)$ का हल है

$\int e^{x \operatorname{cosec} x} \cdot \operatorname{cosec} x \cdot(1-x \cot x) \, dx =$

$\int {{e^x}(1 + \tan x)\sec x\,dx = }$

$\int e^x \left( \frac{2+\sin 2x}{1+\cos 2x} \right) dx$ का मान ज्ञात कीजिए।

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