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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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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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