Сравни выражения
\(a\lt0, \ b\gt0, \ \dfrac{a}{b}\lt0\) .

1. \(a\lt0, \ b\lt0, \ \cfrac{a}{b}\) [ \(\gt\) | \(\lt\) ] \(0\) .
2. \(a\gt0, \ b\gt0, \ -\cfrac{a}{b}\) [ \(\gt\) | \(\lt\) ] \(0\) .
3. \(a\gt0, \ b\lt0, \ -\cfrac{a}{b}\) [ \(\gt\) | \(\lt\) ] \(0\) .
4. \(a\gt0, \ b\gt0, \ -\cfrac{-a}{b}\) [ \(\gt\) | \(\lt\) ] \(0\) .
5. \(a\lt0, \ b\gt0, \ -\cfrac{a}{-b}\) [ \(\gt\) | \(\lt\) ] \(0\) .
6. \(a\gt0, \ b\lt0, \ -\cfrac{a}{-b}\) [ \(\gt\) | \(\lt\) ] \(0\) .
7. \(a\lt0, \ b\lt0, \ -\cfrac{-a}{-b}\) [ \(\gt\) | \(\lt\) ] \(0\) .