यदि $\int \frac{2 x^2-3}{\left(x^2-4\right)\left(x^2+1\right)} d x=A \tan^{-1} x+B \log (x-2)+C \log (x+2)$ है,तो $6 A+7 B-5 C=$

  • A
    $9$
  • B
    $10$
  • C
    $6$
  • D
    $8$

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

$\int \frac{x+1}{x(1+x e^x)} d x=$

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

$\int \limits_0^{\infty} \frac{6}{e^{3 x}+6 e^{2 x}+11 e^x+6} d x$

यदि $\int \frac{2x^2+3}{(x^2-1)(x^2-4)} dx = \log \left[\left(\frac{x-2}{x+2}\right)^a \cdot \left(\frac{x+1}{x-1}\right)^b\right] + c$,(जहाँ $c$ समाकलन का स्थिरांक है),तो $a+b$ का मान ज्ञात कीजिए।

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