$\int \frac{\log \left(x+\sqrt{1+x^2}\right)}{\sqrt{1+x^2}} \,dx = \frac{1}{2}(g(x))^2 + C$,(जहाँ $C$ समाकलन का स्थिरांक है)। तो $g(x) =$

  • A
    $\log \left(x+\sqrt{1+x^2}\right)$
  • B
    $\log \left(x+\sqrt{1+2x^2}\right)$
  • C
    $\log \left(x-\sqrt{1+x^2}\right)$
  • D
    $\log \left(\sqrt{1+x^2}\right)$

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समाकलन ज्ञात कीजिए: $\int \tan ^8 x \sec ^4 x \, dx$.

$\begin{aligned} & \int \frac{dx}{(2 \sin x+\sec x)^4}=A(1+\tan x)^{-5} \\ & +B(1+\tan x)^{-6}+C(1+\tan x)^{-7}+k, \text{ तो } \\ & A+B+C= \end{aligned}$

$\int \frac{x^{e-1}+e^{x-1}}{x^e+e^x} d x=$

यदि $\int \frac{3}{2 \cos ^3 x \sqrt{2 \sin 2 x}} d x = \frac{3}{2}(\tan x)^B + \frac{1}{10}(\tan x)^A + c$ है,तो $A =$

$\int \sin^5 x \cos^4 x \, dx = $

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