यदि $\frac{1}{x(x + 1)(x + 2)...(x + n)} = \frac{A_0}{x} + \frac{A_1}{x + 1} + \frac{A_2}{x + 2} + .... + \frac{A_n}{x + n}$ है,तो $A_r = $

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

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Similar Questions

यदि $\frac{1}{x(x+1)(x+2) \ldots(x+n)} = \sum_{r=0}^{n} \frac{A_r}{x+r}$ है,तो $A_r$ का मान ज्ञात कीजिए:

यदि $\frac{x^4+24 x^2+28}{\left(x^2+1\right)^3}=\frac{A x+B}{x^2+1}+\frac{C x+D}{\left(x^2+1\right)^2}+\frac{E x+F}{\left(x^2+1\right)^3}$ है,तो $A+B+C+D+E+F$ का मान ज्ञात कीजिए।

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

$\frac{x^2 + 1}{(x^2 + 4)(x - 2)}$ के विस्तार में $x^5$ का गुणांक क्या है?

Difficult
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यदि $\frac{4 x^3+16 x+7}{\left(x^2+4\right)^2}=\frac{A x+B}{x^2+4}+\frac{C x+D}{\left(x^2+4\right)^2}$ है,तो $A, B, C, D$ में शून्येतर (non-zero) मानों की संख्या क्या है?

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