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Let A = {4,5,6} , B = {a,y,c,w}and R = {(4,c), (4,y), (5,a),(5,c), (5,w)} is a relation from A to B.Then we can write :

Question

Let A = {4,5,6}, B = {a,y,c,w} and R = {(4,c), (4,y), (5,a),(5,c), (5,w)} be a relation from A to B. Then we can write :

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Solution

To analyze the relation R R from set A A to set B B , we should recognize how the elements of A A map to the elements of B B through the pairs in R R . The elements of A A are related to those in B B based on the given pairs. Let's break this down step-by-step.

1. ### Break Down the Problem

  1. Identify the elements of sets A A and B B :
    • A={4,5,6} A = \{4, 5, 6\}
    • B={a,y,c,w} B = \{a, y, c, w\}
  2. Examine the relation R R :
    • R={(4,c),(4,y),(5,a),(5,c),(5,w)} R = \{(4,c), (4,y), (5,a), (5,c), (5,w)\}
  3. Determine which elements of A A relate to which elements of B B .

2. ### Relevant Concepts

In set theory, a relation R R from set A A to set B B is a subset of the Cartesian product A×B A \times B , which consists of all possible pairs (a,b) (a, b) where aA a \in A and bB b \in B .

3. ### Analysis and Detail

  • The pairs in R R show how elements in A A correspond to those in B B :
    • 4 4 maps to c c and y y (i.e., 4 4 is related to c c and y y ).
    • 5 5 maps to a a , c c , and w w (i.e., 5 5 is related to a a , c c , and w w ).
    • 6 6 is not related to any element in B B (i.e., there are no pairs in R R with 6 6 ).

4. ### Verify and Summarize

  • Since there are no pairs including 6 6 , we can summarize the relation:
    • Element 4 4 in A A relates to c c and y y in B B .
    • Element 5 5 in A A relates to a a , c c , and w w in B B .
    • Element 6 6 in A A does not relate to any element in B B .

Final Answer

The relation R R can thus be expressed as:

  • 4 4 is related to {c,y} \{c, y\}
  • 5 5 is related to {a,c,w} \{a, c, w\}
  • 6 6 is related to \emptyset (no relation).

This problem has been solved

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