मान लीजिए $f(x) = \frac{2\sin^2 x - 1}{\cos x} + \frac{\cos x(2\sin x + 1)}{1 + \sin x}$ है,तो $\int e^x(f(x) + f'(x)) dx$ ज्ञात कीजिए (जहाँ $c$ समाकलन का स्थिरांक है)।

  • A
    $e^x \tan x + c$
  • B
    $e^x \cot x + c$
  • C
    $e^x \csc^2 x + c$
  • D
    $e^x \sec^2 x + c$

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$\int \frac{(x^{2}+1) e^{x}}{(x+1)^{2}} d x=f(x) e^{x}+C$,जहाँ $C$ एक स्थिरांक है,तो $x = 1$ पर $\frac{d^{3} f}{d x^{3}}$ का मान ज्ञात कीजिए।

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

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

$\int {{e^{2x}}\frac{{1 + \sin 2x}}{{1 + \cos 2x}}} \,dx = $

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