$a^{\log_b x}$ का मान ज्ञात कीजिए,जहाँ $a = 0.2$,$b = \sqrt{5}$,और $x = \frac{1}{4} + \frac{1}{8} + \frac{1}{16} + \dots$ अनंत तक है।

  • A
    $1$
  • B
    $2$
  • C
    $\frac{1}{2}$
  • D
    $4$

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