यदि $\log x : 3 = \log y : 4 = \log z : 5$ है,तो $zx =$

  • A
    $2y$
  • B
    $y^2$
  • C
    $8y$
  • D
    $4y$

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

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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:

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