यदि $\frac{x^4}{(x-1)^2(x+1)}=Ax+B+\frac{P}{(x-1)}+\frac{Q}{(x-1)^2}+\frac{R}{x+1}$ है,तो $2AP-BQ+R=$

  • A
    $3$
  • B
    $\frac{13}{4}$
  • C
    $-\frac{11}{4}$
  • D
    $-\frac{7}{2}$

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