$\frac{1}{x(x+1)(x+2) \ldots(x+n)} = \frac{A_0}{x} + \frac{A_1}{x+1} + \ldots + \frac{A_n}{x+n}$. $0 \leq r \leq n$ के लिए,$A_r$ का मान ज्ञात कीजिए:

  • A
    $(-1)^r \frac{1}{r!(n-r)!}$
  • B
    $(-1)^r \frac{r!}{(n-r)!}$
  • C
    $\frac{1}{r!(n-r)!}$
  • D
    $\frac{r!}{(n-r)!}$

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Similar Questions

यदि $\frac{27x^2+32x+16}{(3x+2)^2(1-x)} = \frac{A}{3x+2} + \frac{B}{(3x+2)^2} + \frac{C}{1-x}$ है,तो $AB+BC+CA =$

$\begin{aligned} & \text{यदि } \frac{x^3}{(2x-1)(x-1)^2} = A + \frac{B}{2x-1} + \frac{C}{x-1} \\ & + \frac{D}{(x-1)^2}, \text{ तो } 2A - 3B + 4C + 5D = \end{aligned}$

$\begin{aligned} & \frac{x^2+x+1}{(x-1)(x-2)(x-3)}=\frac{A}{x-1}+\frac{B}{x-2}+\frac{C}{x-3} \\ & \Rightarrow A+C= \end{aligned}$

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

किसी भी द्विघात बहुपद $f(x)$ के लिए, यह सत्य है कि $f(x)=f(a)+f^{\prime}(a)(x-a)+\frac{f^{\prime \prime}(a)}{2!}(x-a)^2$ जहाँ $a$ कोई वास्तविक संख्या है। यदि $\frac{3 x^2+4 x+7}{(x-2)^3}=\frac{A}{(x-2)^3}+\frac{B}{(x-2)^2}+\frac{C}{(x-2)}$ और $g(x)=3 x^2+4 x+7$ है, तो $A+B+C=$

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