જો $\log _{10} 7 = a$ હોય,તો $\log _{10} \left( \frac{1}{70} \right)$ ની કિંમત કેટલી થાય?

  • A
    $-(1+a)$
  • B
    $(1+a)^{-1}$
  • C
    $\frac{a}{10}$
  • D
    $\frac{1}{10a}$

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કિંમત શોધો: $\frac{\log \sqrt{27}+\log \sqrt{1000}+\log 8}{\log 120}$

જો $\log _{e} 2 \cdot \log _{b} 625 = \log _{10} 16 \cdot \log _{e} 10$ હોય,તો $b =$

જો $\log 2=x, \log 3=y$ અને $\log 7=z$ હોય,તો $\log (4 \sqrt[3]{63})$ ની કિંમત શોધો.

જો $\log _{10} 5 + \log _{10}(5x + 1) = \log _{10}(x + 5) + 1$ હોય,તો $x$ ની કિંમત શોધો.

જો $a^{x} = b^{y}$ હોય,તો

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