यदि $\frac{x^2+3}{x^4+2 x^2+9}=\frac{A x+B}{x^2+a x+b}+\frac{C x+D}{x^2+c x+b}$ है,तो $a A+b B+c C+D=$

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

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$\frac{x^2}{x^2+3x-4}$ का आंशिक भिन्न क्या है?

यदि $\frac{x}{(x - 1)(x^2 + 1)^2} = \frac{1}{4} \left[ \frac{1}{x - 1} - \frac{x + 1}{x^2 + 1} \right] + y$ है,तो $y =$

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यदि $\frac{9}{(x - 1)(x + 2)^2} = \frac{A}{x - 1} + \frac{B}{x + 2} + \frac{C}{(x + 2)^2}$ है,तो $A - B - C = $

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