यदि $\int \frac{x^4+1}{x(x^2+1)^2} dx = A \log |x| + \frac{B}{1+x^2} + c$ है,तो $A-B$ का मान ज्ञात कीजिए (जहाँ $c$ समाकलन स्थिरांक है)।

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $-1$

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परिमेय फलन का समाकलन कीजिए: $\frac{(x^{2}+1)(x^{2}+2)}{(x^{2}+3)(x^{2}+4)}$

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

यदि $\frac{d}{d x}\left(\frac{x^2}{(x+2)(2 x+3)}\right)=\frac{A}{(x+2)^2}+\frac{B}{(2 x+3)^2}$ है,तो $A+B=$

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