આપેલ છે કે $\int \frac{1}{x^2+a^2} dx = \frac{1}{a} \tan^{-1}\left(\frac{x}{a}\right) + C$. જો $\int \frac{1}{x^4+3x^2+1} dx = a \cdot \tan^{-1}\left(\frac{b(x^2-1)}{x}\right) + c \cdot \tan^{-1}\left(\frac{d(x^2+1)}{x}\right) + k$,જ્યાં $k$ એ સંકલનનો અચળાંક છે,તો $5(c+d+ab) = $

  • A
    $3$
  • B
    $5$
  • C
    $8$
  • D
    $10$

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જો $\int \frac{1+x^2}{1+x^4} dx=\frac{1}{\sqrt{2}} \tan ^{-1}\left[\frac{f(x)}{\sqrt{2}}\right]+c$ હોય,તો $f(x)=$

જો $\int \frac{5 \tan (x)}{\tan (x)-2} d x = x + a \log |\sin (x) - 2 \cos (x)| + k$ હોય,તો $a$ ની કિંમત શોધો.

$\int \frac{d x}{\sqrt{\left(5+2 x+x^2\right)^3}}$ ની કિંમત શોધો.

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

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