यदि $\frac{-x^2+6x+1}{(x-1)^2(x^2+2)} = \frac{A}{x-1} + \frac{B}{(x-1)^2} + \frac{Cx-3}{x^2+2}$ है,तो $A+B+C=$

  • A
    $7$
  • B
    $5$
  • C
    $3$
  • D
    $2$

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यदि $\frac{x+1}{x^4(x+2)}=\frac{A}{x}+\frac{B}{x^2}+\frac{C}{x^3}+\frac{D}{x^4}+\frac{E}{x+2}$ है, तो $B+D+E$ का मान ज्ञात कीजिए।

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यदि $\frac{2 x^2+5 x+6}{(x+2)^3}=\frac{a}{x+2}+\frac{b}{(x+2)^2}+\frac{c}{(x+2)^3}$ है,तो $a \cdot b+b \cdot c+c \cdot a=$

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