Let \( U = \{ \text{Natural numbers from 1 to 10} \} \), \( K = \{ \text{Factors of 6} \} \), and \( L = \{ \text{Even numbers} \} \) - Junior Cycle Mathematics - Question 5 - 2013
Question 5
Let \( U = \{ \text{Natural numbers from 1 to 10} \} \), \( K = \{ \text{Factors of 6} \} \), and \( L = \{ \text{Even numbers} \} \). Fill in the Venn diagram below... show full transcript
Worked Solution & Example Answer:Let \( U = \{ \text{Natural numbers from 1 to 10} \} \), \( K = \{ \text{Factors of 6} \} \), and \( L = \{ \text{Even numbers} \} \) - Junior Cycle Mathematics - Question 5 - 2013
Step 1
Fill in the Venn diagram below:
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Answer
In the Venn diagram, we identify the elements of the sets:
( U = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 } )
( K = { 1, 2, 3, 6 } ) (Factors of 6)
( L = { 2, 4, 6, 8, 10 } ) (Even numbers)
The diagram would be filled as follows:
K contains {1, 2, 3, 6} (1, 2, 3 in the left circle and 6 in the overlapping section)
L contains {2, 4, 6, 8, 10} (2 and 6 in the overlap, 4, 8, and 10 in the right circle)
The completed diagram includes:
Left circle (K): 1, 3
Overlap (K ∩ L): 2, 6
Right circle (L): 4, 8, 10
Outside both circles: 5, 7, 9
Step 2
K ∩ L = { }
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Answer
False. The intersection ( K \cap L ) is ( { 2, 6 } ). Therefore, it is not empty.
Step 3
K ≠ L
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Answer
True. ( K = { 1, 2, 3, 6 } ) and ( L = { 2, 4, 6, 8, 10 } ); these sets are not equal as they contain different elements.
Step 4
K ∪ L = U
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Answer
False. The union ( K \cup L ) includes { 1, 2, 3, 4, 6, 8, 10 }. However, it does not include 5, 7, and 9, which are part of ( U ). Thus, ( K \cup L ) is not equal to ( U ).
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