§ Задание 207
\[\boxed{\mathbf{207.}}\]
\[\textbf{а)}\ A \cup (B \cap A) = B\]

\[Неверно,\ = A.\]
\[\textbf{б)}\ A \cap (B \cup A) = A\]

\[Верно.\]
\[\boxed{\mathbf{207.}}\]
\[\textbf{а)}\ A \cup (B \cap A) = B\]

\[Неверно,\ = A.\]
\[\textbf{б)}\ A \cap (B \cup A) = A\]

\[Верно.\]