Q10 of 76 Page 2

Determine the domain and range of the following relations:

R= {a, b): a N, a < 5, b = 4}

Given,


R= {a, b): a N, a < 5, b = 4}


Natural numbers less than 5 are 1, 2, 3 and 4


Therefore, a {1, 2, 3, 4} and b {4}


⇒ R = {(1, 4), (2, 4), (3, 4), (4, 4)}


So,


Domain of relation R = {1, 2, 3, 4}


Range of relation R = {4}


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