\[\boxed{\mathbf{326}\mathbf{.}}\]
\[1)\log_{3}x < 2\]
\[\log_{3}x < \log_{3}3^{2}\]
\[x < 3^{2}\ \]
\[x < 9\]
\[Ответ:\ \ x < 9.\]
\[2)\log_{0,4}x > 2\]
\[\log_{0,4}x > \log_{0,4}{0,4}^{2}\]
\[x < {0,4}^{2}\]
\[x < 0,16\]
\[Ответ:\ \ 0 < x < 0,16.\]
\[3)\log_{\frac{1}{2}}x \geq 16\]
\[\log_{\frac{1}{2}}x \geq \log_{\frac{1}{2}}\left( \frac{1}{2} \right)^{16}\]
\[x \leq \left( \frac{1}{2} \right)^{16}\ \]
\[x \leq \frac{1}{65\ 536}\]
\[Ответ:\ \ 0 < x \leq \frac{1}{65\ 536}.\]
\[4)\log_{0,4}x \leq 2\]
\[\log_{0,4}x \leq \log_{0,4}{0,4}^{2}\]
\[x \geq {0,4}^{2}\ \]
\[x \geq 0,16\]
\[Ответ:\ \ x \geq 0,16.\]