$\frac{\log 49 \sqrt{7} + \log 25 \sqrt{5} - \log 4 \sqrt{2}}{\log 17.5} = $

  • A
    $5$
  • B
    $2$
  • C
    $\frac{5}{2}$
  • D
    $\frac{3}{2}$

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$\frac{\log _{9} 11}{\log _{5} 13}-\frac{\log _{3} 11}{\log _{\sqrt{5}} 13}=$

જો $\frac{\log _{2} a}{2}=\frac{\log _{3} b}{3}=\frac{\log _{4} c}{4}$ અને $a^{1 / 2} \cdot b^{1 / 3} \cdot c^{1 / 4}=24$ હોય,તો:

જો $\log _{10} 87.5 = 1.9421$ હોય,તો $(875)^{10}$ માં અંકોની સંખ્યા કેટલી થાય?

જો $\log x = \frac{\log y}{2} = \frac{\log z}{5}$ હોય,તો $x^{4} \cdot y^{3} \cdot z^{-2} = $

જો $(4.2)^{x} = (0.42)^{y} = 100$ હોય,તો $\frac{1}{x} - \frac{1}{y} = $

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