§ Задание 157
\[\boxed{\mathbf{157.}}\]
\[S = a \cdot b = 36.\]
\[\textbf{а)}\ истинно;\]
\[\textbf{б)}\ ложно;\]
\[\textbf{в)}\ ложно;\]
\[\textbf{г)}\ истинно.\]
\[\boxed{\mathbf{157.}}\]
\[S = a \cdot b = 36.\]
\[\textbf{а)}\ истинно;\]
\[\textbf{б)}\ ложно;\]
\[\textbf{в)}\ ложно;\]
\[\textbf{г)}\ истинно.\]