\[Дано:\ \ a > 0\ \ и\ \ b < 0.\]
\[a² > 0\]
\[b^{4} > 0\]
\[a^{3} > 0\]
\[b^{5} < 0\]
\[a^{2}b < 0\]
\[ab^{2} > 0\]
\[\left( \text{ab} \right)^{3} < 0\]
\[\left( \text{ab} \right)^{6} > 0\]