यदि $\frac{x}{(x-1)(x^2+1)^2} = \frac{1}{4}\left[\frac{1}{x-1} - \frac{x+1}{x^2+1}\right] + y$ है,तो $y =$

  • A
    $\frac{1}{2}\left[\frac{1-x}{(x^2+1)^2}\right]$
  • B
    $\frac{1+x}{3(x^2+1)^2}$
  • C
    $\frac{1-x}{(x^2-1)^2}$
  • D
    $\frac{1+x}{(x^2+1)^2}$

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यदि $\frac{3x^2+x+1}{(x-1)^4} = \frac{a}{(x-1)} + \frac{b}{(x-1)^2} + \frac{c}{(x-1)^3} + \frac{d}{(x-1)^4}$ है,तो $\begin{bmatrix} a & b \\ c & d \end{bmatrix}$ किसके बराबर है?

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

$\begin{aligned} & \text{यदि } \frac{x^4}{(x-a)(x-b)(x-c)}=P(x)+\frac{A}{x-a}+\frac{B}{x-b} \\ & +\frac{C}{x-c} \text{ है, तो } P(0)+A(a-b)(a-c)= \end{aligned}$

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