Union
$$A \cup B =$$
{ affective, analysis, application, behavioural, cognitive, comprehension, evaluation, knowledge, synthesis }
Symmetric Difference
$$A \ominus B =$$
{ affective, analysis, application, behavioural, cognitive, comprehension, evaluation, knowledge, synthesis }
Difference
$$A - B =$$
{ analysis, application, comprehension, evaluation, knowledge, synthesis }
Cartesian Product
$$A \times B =$$
{ (analysis, affective),
(analysis, behavioural),
(analysis, cognitive),
(application, affective),
(application, behavioural),
(application, cognitive),
(comprehension, affective),
(comprehension, behavioural),
(comprehension, cognitive),
(evaluation, affective),
(evaluation, behavioural),
(evaluation, cognitive),
(knowledge, affective),
(knowledge, behavioural),
(knowledge, cognitive),
(synthesis, affective),
(synthesis, behavioural),
(synthesis, cognitive) }