If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Commutative and associative binary operations

Problem

A binary operation on Z is defined by ab=|ab|.
Z is the set of integers.
Is associative?
Choose 1 answer:
Stuck?
Stuck?