$\int \frac{d x}{x^2+2 x+5} = $ . . . . . . $+ C$.

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

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જો $x \neq (2n+1) \frac{\pi}{2}, n \in Z$ અને $\cos x \neq \frac{-1}{2}$ હોય, તો સંકલન શોધો:
$\int \left( \frac{\sin x + \sin 2x}{1 + \cos x + \cos 2x} \right)^2 dx$

જો $f^{\prime}(x)=x+\frac{1}{x}$ હોય,તો $f(x)=$

જો $\int \frac{x+5}{x^2+4x+5} dx = a \log(x^2+4x+5) + b \tan^{-1}(x+k) + C$ હોય, તો $(a, b, k)$ ની કિંમત શોધો.

જો $\int \frac{dx}{32-2x^2} = A \log(4-x) + B \log(4+x) + c$ હોય,તો $A$ અને $B$ ની કિંમતો અનુક્રમે શું થાય? (જ્યાં $c$ એ સંકલનનો અચળાંક છે)

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