Mathematics, 28.01.2020 02:31 Delqueen8956
Let a be the set of students at your school and b the set of books in the school library. let r₁ and r₂ be the relations consisting of all ordered pairs (a, b), where student a is required to read book b in a course, and where student a has read book b, respectively. describe the ordered pairs in each of these relations.
a) r₁ ∪ r₂
b) r₁ ∩ r₂
c) r₁ ⊕ r₂
d) r₁ − r₂
e) r₂ − r₁
Answers: 3
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Let a be the set of students at your school and b the set of books in the school library. let r₁ and...
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