Let R be a relation from a set A to a set B, then

Question:

Let R be a relation from a set A to a set B, then

(a) R = A ∪ B

(b) R = A ∩ B

(c) R ⊆ A × B

(d) R ⊆ B × A

Solution:

(c) R ⊆ A × B

If R is a relation from set A to set B, then R is always a subset of A × B.

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