જો $\log _{30} 3=a$ અને $\log _{30} 5=b$ હોય,તો $\log _{30} 8$ ની કિંમત શોધો.

  • A
    $3(1-a-b)$
  • B
    $a-b+1$
  • C
    $1-a-b$
  • D
    $3(a-b+1)$

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Similar Questions

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

જો $\log _{x} y=100$ અને $\log _{2} x=10$ હોય,તો $y$ ની કિંમત કેટલી થાય?

જો $x = \log_{2a} a$,$y = \log_{3a} 2a$ અને $z = \log_{4a} 3a$ હોય,તો $yz(2-x)$ ની કિંમત શોધો.

જો $\frac{\log _{2} x}{3}=\frac{\log _{2} y}{4}=\frac{\log _{2} z}{5 k}$ અને $\frac{z}{x^{3} y^{4}}=1$ હોય,તો $k=$

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

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