Exam (2010)
Mathematics
Consider the following relations:
are real numbers and wy for some rational
mumber w/;
and are
integers such that and .
Then
A
is an equivalence relation but is not an equivalence relation
B
neither nor is an equivalence relation
C
is an equivalence relation but is not an equivalence relation
D
and both are equivalence relations
Select an option to instantly check whether it is correct or wrong.



