Union
$$A \cup B =$$
{ analysis, collection, dissemination, feedback, preview, processing, question, read, requirements, summarize, test }
Symmetric Difference
$$A \ominus B =$$
{ analysis, collection, dissemination, feedback, preview, processing, question, read, requirements, summarize, test }
Cartesian Product
$$A \times B =$$
{ (preview, analysis),
(preview, collection),
(preview, dissemination),
(preview, feedback),
(preview, processing),
(preview, requirements),
(question, analysis),
(question, collection),
(question, dissemination),
(question, feedback),
(question, processing),
(question, requirements),
(read, analysis),
(read, collection),
(read, dissemination),
(read, feedback),
(read, processing),
(read, requirements),
(summarize, analysis),
(summarize, collection),
(summarize, dissemination),
(summarize, feedback),
(summarize, processing),
(summarize, requirements),
(test, analysis),
(test, collection),
(test, dissemination),
(test, feedback),
(test, processing),
(test, requirements) }