ધારો કે $a, b$, અને $c$ એવા છે કે $\frac{1}{(1-x)(1-2x)(1-3x)} = \frac{a}{1-x} + \frac{b}{1-2x} + \frac{c}{1-3x}$. તો $\frac{a}{1} + \frac{b}{3} + \frac{c}{5}$ ની કિંમત શોધો.

  • A
    $\frac{1}{15}$
  • B
    $\frac{1}{6}$
  • C
    $\frac{1}{5}$
  • D
    $\frac{1}{3}$

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