Cho \(\log a = 10;\)\(\log b = 100\). Khi đó \(\log( {a.{b^3} bằng
Giải thích
\[\log \left( {a.{b^3}} \right) = \log \left( a \right) + \log \left( {{b^3}} \right) = \log \left( a \right) + 3\log \left( b \right) = 310\].
\[\log \left( {a.{b^3}} \right) = \log \left( a \right) + \log \left( {{b^3}} \right) = \log \left( a \right) + 3\log \left( b \right) = 310\].