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(Solved): Define a relation on Z_(+)by
abLongleftrightarrowab=k^(2) for some kinZ_(+).
Show that is ...
Define a relation ? on Z_(+)by
a?bLongleftrightarrowab=k^(2) for some kinZ_(+).
Show that ? is an equivalence relation, and determine the following equivalence classes:
[3], [9], [99].