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$\log_\sqrt8x=3\frac13$ হলে $x$ এর মান কত?

Visit to study 46th BCS 200 MCQ & Solution

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$\log_{\sqrt{8}} x = 3\frac{1}{3}$

বা, $\log_{8^{\frac{1}{2}}} x = \frac{10}{3}$

বা, $\frac{\log_8 x}{\frac{1}{2}} = \frac{10}{3}$

বা, $2 \log_8 x = \frac{10}{3}$

বা, $\log_8 x = \frac{5}{3}$

বা, $x = 8^{\frac{5}{3}}$

বা, $x = (2^3)^{\frac{5}{3}}$

বা, $x = 2^{5}$

বা, $x = 32$

সুতরাং, $\log_\sqrt8x=3\frac13$ হলে $x$ এর মান $32$

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Rules Applied :

  • $log_{a^b}x=\frac{log_ax}{b}$

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