$\int \frac{x^2+1}{x^4+7 x^2+1} d x$ ની કિંમત શોધો.

  • A
    $\frac{1}{3} \tan ^{-1}\left(\frac{x^2-1}{3 x}\right)+C$
  • B
    $\tan ^{-1}\left(\frac{x^2-1}{x}\right)+C$
  • C
    $\frac{1}{3} \tan ^{-1}\left(\frac{x^2-1}{x}\right)+C$
  • D
    $\frac{1}{\sqrt{3}} \tan ^{-1}\left(\frac{x^2-1}{\sqrt{3} x}\right)+C$

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$\int \frac{2x + 1}{(x^2 + 4x + 1)^{3/2}} \, dx$

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$-1 < x, y < 1$ માટે,જો $\int \frac{x}{\sqrt{1+x}+\sqrt{1-x}} dx + \int \frac{y}{\sqrt{y+1}+\sqrt{y-1}} dy = A(1+x)^{3/2} + B(1-x)^{3/2} + f(y)(y+1)^{3/2} + g(y)(y-1)^{3/2} + C$ હોય,તો $A f(y) + B g(y) =$

$\int \frac{2x^2-1+x^2\sqrt{x^2+4}}{x^2(x^2+4)} dx =$

જો $I_n = \int \frac{1}{(x^2+1)^n} dx$ હોય,તો $2n I_{n+1} - (2n-1) I_n = $

જો $\int \sqrt{\sec 2x - 1} \, dx = \alpha \log_e \left| \cos 2x + \beta + \sqrt{\cos 2x (1 + \cos \frac{1}{\beta} x)} \right| + C$ હોય,તો $\beta - \alpha$ ની કિંમત શોધો.

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