यदि $3^{x-2}=5$ और $\log_{10} 2=0.30103, \log_{10} 3=0.4771$ है,तो $x=$

  • A
    $1 \frac{22187}{47710}$
  • B
    $2 \frac{22187}{47710}$
  • C
    $3 \frac{22187}{47710}$
  • D
    इनमें से कोई नहीं

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यदि $\log _{10}\left[98+\sqrt{x^{2}-12 x+36}\right]=2$ है,तो $x=$

यदि $\log _{10} 87.5 = 1.9421$ है,तो $(875)^{10}$ में अंकों की संख्या क्या है?

यदि $\log \left(\frac{x+y}{5}\right) = \frac{1}{2}(\log x + \log y)$ है,तो $\frac{x}{y} + \frac{y}{x} = $

यदि $\frac{\log _{2} x}{3}=\frac{\log _{2} y}{4}=\frac{\log _{2} z}{5 k}$ और $\frac{z}{x^{3} y^{4}}=1$ है,तो $k=$

यदि $\log_{10} 2 = 0.3010$ है,तो $\log_{10}(1/2) =$

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