Основанонаупр.13, стр.12
Выбериправильныйответ

Сравничисла \(a\) и \(b\) счислом \(0\) , еслиизвестно, что:

1. \(9a\gt10a\) ;
   \(a\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) .
2. \(-3b\lt-4b\) ;
   \(b\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) .
3. \(\dfraca6\gt\dfracb6\) и \(b\gt1\) ;
   \(a\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) и \(b\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) .
4. \(a+3\ltb+3\) и \(b\lt-2\) ;
   \(a\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) и \(b\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) .
5. \(-10a\gt-10b\) и \(b\lt-\dfrac13\) ;
   \(a\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) и \(b\) [ \(\gt\) | \(=\) | \(\lt\) ] \(0\) .