यदि $\frac{x^5-5}{x^3+x^2}=f(x)+\frac{A}{x}+\frac{B}{x^2}+\frac{C}{x+1}$ है, तो $K$ का वह बड़ा मान जिसके लिए $f(K)+A+B+C=1$ है, ज्ञात कीजिए।

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

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