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1. E (Universal set)= {1, 2, 3, 4, 5, 6, 7}

A= {1, 2, 3, 4} B= {1, 2, 3} C= {1, 2}

Draw a Venn diagram to illustrate these sets.

 

2. E= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

P= {2, 3, 5, 7} O= {1, 3, 5, 7, 9} S= {1, 4, 8}

Draw a Venn diagram to illustrate these sets.

 

3. E= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}

F= {4, 8, 12, 16} T= {3, 6, 9, 12, 15} P= {2, 3, 5, 7, 11, 15}

Draw a Venn diagram to illustrate these sets.

 

4. E= {40, 41, 42, 43, 44, 45, 46, 47, 48, 49}

A= {prime numbers}

B= {odd numbers}

Complete the Venn diagram by placing the 10 numbers in the correct places.

*There's supposed 2 b a diagram with this ques but idk how 2 put it.

 

5. A and B are sets such that n(A)= 7, n(B)= 12 and n(A ∩ B)= 5

Find n(A ∩ B).

 Feb 28, 2016
 #1
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Here's (1)

 

 

 

 

 

 

cool cool cool

 Feb 28, 2016
 #2
avatar+129845 
0

Here's (2)

 

 

 

 

cool cool cool

 Feb 28, 2016
 #3
avatar+129845 
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Here's (3)  ....I'm assuming that the "16"  in set "F" is supposed to be "15"

 

 

 

cool cool cool

 Feb 28, 2016
 #4
avatar+129845 
0

Here's (4)

 

 

cool cool cool

 Feb 28, 2016
 #5
avatar+129845 
0

I think that you want  n(A U B)  in (5)

 

If so, we have

 

n(A U B)  =  n(A) + n(B)  -  n(A ∩ B)

 

n(A U B)  =   7    +   12    -       5        =   14

 

 

 

cool cool cool

 Feb 28, 2016

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