यदि $a^{x} = b^{y}$ है,तो

  • A
    $\log \frac{a}{b} = \frac{x}{y}$
  • B
    $\frac{\log a}{\log b} = \frac{x}{y}$
  • C
    $\frac{\log a}{\log b} = \frac{y}{x}$
  • D
    इनमें से कोई नहीं

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यदि $\frac{\log _{2} a}{2}=\frac{\log _{3} b}{3}=\frac{\log _{4} c}{4}$ और $a^{1 / 2} \cdot b^{1 / 3} \cdot c^{1 / 4}=24$ है,तो:

यदि $\frac{1}{\log _{x} 10}=\frac{2}{\log _{a} 10}-2$ है,तो $x=$

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