$a > 0$ માટે,ધારો કે $\frac{1}{a(a+1)(a+2) \ldots(a+20)}=\sum_{k=0}^{20} \frac{A_{k}}{a+k}$. તો $100\left(\frac{A_{14}+A_{15}}{A_{13}}\right)^{2}$ ની કિંમત $....$ છે.

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

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Similar Questions

$\frac{x^2}{x^2+3x-4}$ નો આંશિક અપૂર્ણાંક શું છે?

જો $\frac{3x + a}{x^2 - 3x + 2} = \frac{A}{x - 2} - \frac{10}{x - 1}$ હોય,તો:

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જો $\frac{2x^4-x^3+3x^2-x+4}{x^2-3x+2} = f(x) + \frac{A}{x-1} + \frac{B}{x-2}$ હોય,તો:

$\frac{1}{x(x+1)(x+2) \ldots(x+n)} = \sum_{r=0}^{n} \frac{A_r}{x+r}$ હોય,તો $A_r$ ની કિંમત શોધો:

જો $\frac{2x^3+x^2-5}{x^4-25}=\frac{Ax+B}{x^2-5}+\frac{Cx+1}{x^2+5}$ હોય, તો $(A, B, C)$ ની કિંમત શોધો.

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