Union
$$A \cup B =$$
{ aries, cancer, capricorn, forming, libra, norming, performing, storming }
Symmetric Difference
$$A \ominus B =$$
{ aries, cancer, capricorn, forming, libra, norming, performing, storming }
Difference
$$A - B =$$
{ forming, norming, performing, storming }
Difference
$$B - A =$$
{ aries, cancer, capricorn, libra }
Cartesian Product
$$A \times B =$$
{ (forming, aries),
(forming, cancer),
(forming, capricorn),
(forming, libra),
(norming, aries),
(norming, cancer),
(norming, capricorn),
(norming, libra),
(performing, aries),
(performing, cancer),
(performing, capricorn),
(performing, libra),
(storming, aries),
(storming, cancer),
(storming, capricorn),
(storming, libra) }