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Given A = {2, 3, 4}, B = {2, 5, 6, 7}. Construct an example of the following:an injective mapping from A to B

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Question

Given A = {2, 3, 4}, B = {2, 5, 6, 7}. Construct an example of the following:
an injective mapping from A to B

Sum
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Solution

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

Let f: A → B denote a mapping

f = {(x, y): y = x + 3}

or

f = {(2, 5), (3, 6), (4, 7)}, which is an injective mapping.

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Chapter 1: Relations And Functions - Exercise [Page 12]

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NCERT Exemplar Mathematics Exemplar [English] Class 12
Chapter 1 Relations And Functions
Exercise | Q 18. (a) | Page 12

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