Union
$$A \cup B =$$
{ concentration, conduct, effort, livelihood, mindfulness, preview, question, read, resolve, speech, summarize, test, view }
Symmetric Difference
$$A \ominus B =$$
{ concentration, conduct, effort, livelihood, mindfulness, preview, question, read, resolve, speech, summarize, test, view }
Cartesian Product
$$A \times B =$$
{ (concentration, preview),
(concentration, question),
(concentration, read),
(concentration, summarize),
(concentration, test),
(conduct, preview),
(conduct, question),
(conduct, read),
(conduct, summarize),
(conduct, test),
(effort, preview),
(effort, question),
(effort, read),
(effort, summarize),
(effort, test),
(livelihood, preview),
(livelihood, question),
(livelihood, read),
(livelihood, summarize),
(livelihood, test),
(mindfulness, preview),
(mindfulness, question),
(mindfulness, read),
(mindfulness, summarize),
(mindfulness, test),
(resolve, preview),
(resolve, question),
(resolve, read),
(resolve, summarize),
(resolve, test),
(speech, preview),
(speech, question),
(speech, read),
(speech, summarize),
(speech, test),
(view, preview),
(view, question),
(view, read),
(view, summarize),
(view, test) }