Выбери верные ответы

Сравни:

1. \(6,8\cdot 10^{-7}\) [ \(\lt\) | \(=\) | \(\gt\) ] \(7,2\cdot 10^{-8}\) ;

2. \(1,54\cdot 10^8\) [ \(\lt\) | \(=\) | \(\gt\) ] \(0,15\cdot 10^9\) ;

3. \(27,9\cdot 10^{-12}\) [ \(\lt\) | \(=\) | \(\gt\) ] \(0,038\cdot 10^{-10}\) .