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Question
Write the domain and range of the following relation: {(a, b) / a ∈ N, a < 6 and b = 4}
Solution
Let R1 = {(a, b)/ a ∈ N, a < 6 and b = 4}
Set of values of ‘a’ are domain and set of values of ‘b’ are range.
a ∈ N and a < 6
∴ a = 1, 2, 3, 4, 5 and b = 4
Domain (R1) = {1, 2, 3, 4, 5}
Range (R1) = {4}
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