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

  • A
    $\tan^{-1}(e^{-x}) + C$
  • B
    $\tan^{-1}(e^x) + C$
  • C
    $\log(e^x - e^{-x}) + C$
  • D
    $\log(e^x + e^{-x}) + C$

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$\int \frac{x^3}{\sqrt{x^2 + 2}} \, dx = $

જો $\int \frac{\sqrt{2} \, dx}{\cos x \sqrt{\sin 2x}} = f(x) + c$ હોય, તો $f(x) =$

$\int \frac{dx}{x \log x \log(\log x)} = $

જો $\int \sqrt{x-\frac{1}{x}}\left(\frac{x^{2}+1}{x^{2}}\right) d x=\frac{2}{3}\left(x-\frac{1}{x}\right)^{k}+c$ હોય,તો $k$ ની કિંમત શોધો.

$\int x^{2} e^{x^{3}} d x$ ની કિંમત શોધો.

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