यदि $\frac{x^2-2}{(x^2+1)(x^2+3)} = \frac{Ax+B}{x^2+1} + \frac{Cx+D}{x^2+3}$ है, तो $D=$

  • A
    $\frac{-3}{2}$
  • B
    $\frac{-1}{2}$
  • C
    $2$
  • D
    $\frac{5}{2}$

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