$\frac{3+\log _{10} 343}{2+\frac{1}{2} \log _{10} \left(\frac{49}{4}\right)+\frac{1}{3} \log _{10} \left(\frac{1}{125}\right)}=$

  • A
    $3$
  • B
    $3/2$
  • C
    $2$
  • D
    $1$

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

$\log _{2} 16$ ની કિંમત શોધો.

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

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જો $\log 2 = 0.30103$ અને $\log 3 = 0.4771$ હોય,તો $(648)^{5}$ માં અંકોની સંખ્યા કેટલી થાય?

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