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

  • A
    $1$
  • B
    $4$
  • C
    $3$
  • D
    $2$

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