1.

Are the following set of ordered pairs functions? If so, examine whether the mapping is injective or surjective:(i) {(x, y) : x is a person, y is the mother of x}(ii) {(a, b) : a is a person, b is an ancestor of a} [NCERT EXEMPLAR]

Answer» Are the following set of ordered pairs functions? If so, examine whether the mapping is injective or surjective:



(i) {(x, y) : x is a person, y is the mother of x}

(ii) {(a, b) : a is a person, b is an ancestor of a} [NCERT EXEMPLAR]


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