જો $y = \frac{1}{a^{1-\log _{a} x}}$,$z = \frac{1}{a^{1-\log _{a} y}}$ અને $x = a^{k}$ હોય,તો $k =$

  • A
    $\frac{1}{a^{1-\log _{a} z}}$
  • B
    $\frac{1}{1-\log _{a} z}$
  • C
    $\frac{1}{1+\log _{z} a}$
  • D
    $\frac{1}{1-\log _{z} a}$

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જો $\log x : 3 = \log y : 4 = \log z : 5$ હોય,તો $zx =$

જો $\log _{2}\left(3^{2 x-2}+7\right)=2+\log _{2}\left(3^{x-1}+1\right)$ હોય,તો $x=$

જો $x = \log_{4/3}(1/2)$ અને $y = \log_{1/2}(1/3)$ હોય,તો

$\log _{5}\left(1+\frac{1}{5}\right)+\log _{5}\left(1+\frac{1}{6}\right)+\log _{5}\left(1+\frac{1}{7}\right)+\cdots+\log _{5} \left(1+\frac{1}{624}\right)$

જો $\log 3 = 0.477$ અને $(1000)^{x} = 3$ હોય,તો $x$ ની કિંમત શોધો.

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