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Given A = {2, 3, 4}, B = {2, 5, 6, 7}. Construct an example of each of the following: a mapping from A to B which is not injective

 Given A = {2, 3, 4}, B = {2, 5, 6, 7}. 
Construct an example of each of the following: 
  a mapping from A to B which is not injective 
  

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
2 years ago
Dear Student

A = {2, 3, 4}, B = {2, 5, 6, 7}

Let g: A → B denote a mapping such that g = {(2, 2), (3, 2), (4, 5)},
which is obviously not an injectivemapping.


Thanks

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