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If A = {2, 3, 5}, B = {2, 5, 6}, then (A...

If A = {2, 3, 5}, B = {2, 5, 6}, then `(A - B) xx (AnnB)` is

A

`{(3,2),(3,3),(3,5)}`

B

`{(3,2),(3,5),(3,6)}`

C

`{(3,2),(3,5)}`

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to find the Cartesian product of the difference of sets A and B, denoted as \( A - B \), and the intersection of sets A and B, denoted as \( A \cap B \). ### Step-by-Step Solution: 1. **Identify the Sets**: - Given \( A = \{2, 3, 5\} \) - Given \( B = \{2, 5, 6\} \) 2. **Find \( A - B \)**: - The difference \( A - B \) consists of elements that are in A but not in B. - From set A, we remove the elements that are also in set B. - Elements in A: \( 2, 3, 5 \) - Elements in B: \( 2, 5 \) - Removing \( 2 \) and \( 5 \) from A leaves us with \( 3 \). - Therefore, \( A - B = \{3\} \). 3. **Find \( A \cap B \)**: - The intersection \( A \cap B \) consists of elements that are common to both sets A and B. - Common elements in A and B are \( 2 \) and \( 5 \). - Therefore, \( A \cap B = \{2, 5\} \). 4. **Calculate the Cartesian Product \( (A - B) \times (A \cap B) \)**: - Now we need to find the Cartesian product of \( A - B \) and \( A \cap B \). - We have \( A - B = \{3\} \) and \( A \cap B = \{2, 5\} \). - The Cartesian product \( (A - B) \times (A \cap B) \) is formed by pairing each element of \( A - B \) with each element of \( A \cap B \). - Thus, we have: - Pairing \( 3 \) with \( 2 \) gives \( (3, 2) \) - Pairing \( 3 \) with \( 5 \) gives \( (3, 5) \) - Therefore, \( (A - B) \times (A \cap B) = \{(3, 2), (3, 5)\} \). ### Final Answer: The result of \( (A - B) \times (A \cap B) \) is \( \{(3, 2), (3, 5)\} \).
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Knowledge Check

  • Let A = {x : x^(2) - 5x + 6 = 0 } , B = { 2,4} = {4,5} then A xx (B cap C) is

    A
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    B
    `{(4,2),(4,3)}`
    C
    `{(2,4),(3,4),(4,4)}`
    D
    `{(2,2),(3,3),(4,4),(5,2)}`
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