$a > 0$ के लिए,मान लीजिए $\frac{1}{a(a+1)(a+2) \ldots(a+20)}=\sum_{k=0}^{20} \frac{A_{k}}{a+k}$. तब $100\left(\frac{A_{14}+A_{15}}{A_{13}}\right)^{2}$ का मान $....$ है।

  • A
    $9$
  • B
    $27$
  • C
    $3$
  • D
    $81$

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Similar Questions

मान लीजिए कि $a, b$, और $c$ इस प्रकार हैं कि $\frac{1}{(1-x)(1-2x)(1-3x)} = \frac{a}{1-x} + \frac{b}{1-2x} + \frac{c}{1-3x}$. तो $\frac{a}{1} + \frac{b}{3} + \frac{c}{5}$ का मान ज्ञात कीजिए।

$\frac{x^4}{x^3-3x+2}$ एक

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

$\frac{2x^2+1}{x^3-1} = \frac{A}{x-1} + \frac{Bx+C}{x^2+x+1} \Rightarrow 7A + 2B + C = ?$

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