3. Вычислите: \(\log_6\sqrt6+\log_8\sqrt8-\log_3\sqrt3\).

\(\log_6\sqrt6=\frac12\), \(\log_8\sqrt8=\frac12\), \(\log_3\sqrt3=\frac12\).

\(\frac12+\frac12-\frac12=\frac12\).

Ответ: \(\frac12\).