यदि $\frac{3x+1}{(x-1)(x^2+2)}=\frac{A}{x-1}+\frac{Bx+C}{x^2+2}$ है,तो $5(A-B)=$

  • A
    $A+C$
  • B
    $8C$
  • C
    $C+8$
  • D
    $\frac{C}{8}$

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यदि $\frac{x^2+5x+7}{(x-3)^3}=\frac{A}{(x-3)}+\frac{B}{(x-3)^2}+\frac{C}{(x-3)^3}$ है,तो $9A-3B+C=$

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