यदि $\frac{2x^4-3x^2+4}{(x^2+1)(x^2+2)} = a + \frac{px+q}{x^2+1} + \frac{mx+n}{x^2+2}$ है,तो $\frac{n}{q} =$

  • A
    $p+m-a$
  • B
    $\frac{p+m}{a}$
  • C
    $\frac{a}{p+m}$
  • D
    $\frac{n}{q}$ अपरिभाषित है

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