Question: Let R be the relation on the set of all students containing the ordered pair (a, b) if a and b are in at least

Let R be the relation on the set of all students containing the ordered pair (a, b) if a and b are in at least one common class and a ≠ b. When is (a, b) in
a) R2?
b) R3?
c) R∗?

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