જો ${\log _7}2 = m$ હોય,તો ${\log _{49}}28$ ની કિંમત શોધો.

  • A
    $2(1 + 2m)$
  • B
    $\frac{1 + 2m}{2}$
  • C
    $\frac{2}{1 + 2m}$
  • D
    $1 + m$

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$\log _{3}4 \cdot \log _{4}5 \cdot \log _{5}6 \cdot \log _{6}7 \cdot \log _{7}8 \cdot \log _{8}9$ ની કિંમત શોધો.

જો ${\log _{12}}27 = a,$ હોય,તો ${\log _6}16 = $

$20^{301}$ માં અંકોની સંખ્યા (આપેલ છે, $\log _{10} 2=0.3010$) કેટલી છે?

$(0.16)^{\log _{2.5}\left(\frac{1}{3}+\frac{1}{3^{2}}+\frac{1}{3^{3}}+\ldots \infty\right)}$ ની કિંમત શોધો.

જો $\log_2 x + \log_x 2 = \frac{10}{3} = \log_2 y + \log_y 2$ અને $x \neq y$ હોય,તો $x + y = $

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