જો $\int \frac{2x^2+3}{(x^2-1)(x^2-4)} dx = \log \left[\left(\frac{x-2}{x+2}\right)^a \cdot \left(\frac{x+1}{x-1}\right)^b\right] + c$,(જ્યાં $c$ એ સંકલનનો અચળાંક છે),તો $a+b$ ની કિંમત શોધો.

  • A
    $\frac{1}{12}$
  • B
    $\frac{21}{12}$
  • C
    $\frac{-1}{12}$
  • D
    $\frac{-21}{12}$

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$\int \frac{x^{2}}{\left(x^{2}+1\right)\left(x^{2}+4\right)} d x$ શોધો.

$\int \frac{\tan x}{\cos x(\sec x-1)(\sec x-2)} d x=$ . . . . . . $+c$

$\int \frac{x+1}{x^3-1} \, dx =$

જો $\int \frac{dx}{x^4+5x^2+4} = A \tan^{-1} x + B \tan^{-1} \frac{x}{2} + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે,તો:

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

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