Задание

Сравните числа \(\displaystyle \small \color{green}{v}\) и \(\displaystyle \small\color{blue}{w},\) если известно, что

\(\displaystyle \color{green}{v} \cdot z<\color{blue}{w} \cdot z \)

\(\displaystyle z<0\) \(\displaystyle \color{green}{v}\)[?|<|>]\(\displaystyle \color{blue}{w}\)
\(\displaystyle z>0\) \(\displaystyle \color{green}{v}\)[?|<|>]\(\displaystyle \color{blue}{w}\)