Union
$$A \cup B =$$
{ Anthropology, Economics, Geography, Political science, Psychology, Sociology, memorization, note taking, reading, testing, time management }
Symmetric Difference
$$A \ominus B =$$
{ Anthropology, Economics, Geography, Political science, Psychology, Sociology, memorization, note taking, reading, testing, time management }
Cartesian Product
$$A \times B =$$
{ (Anthropology, memorization),
(Anthropology, note taking),
(Anthropology, reading),
(Anthropology, testing),
(Anthropology, time management),
(Economics, memorization),
(Economics, note taking),
(Economics, reading),
(Economics, testing),
(Economics, time management),
(Geography, memorization),
(Geography, note taking),
(Geography, reading),
(Geography, testing),
(Geography, time management),
(Political science, memorization),
(Political science, note taking),
(Political science, reading),
(Political science, testing),
(Political science, time management),
(Psychology, memorization),
(Psychology, note taking),
(Psychology, reading),
(Psychology, testing),
(Psychology, time management),
(Sociology, memorization),
(Sociology, note taking),
(Sociology, reading),
(Sociology, testing),
(Sociology, time management) }