Question 468009
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
Note: U indicates all the distinct elements in both sets.  
      &#8745; indicates only those elements they have in common.
Given A = {1,2,3,4,5,6}, B = {1,2}, and C = {6, 7}. 
a) A &#8745; B = {1,2}
b) A U C = {1,2,3,4,5,6,7} 
c) B U C = {1,2,6,7}
d) (A U B) &#8745; C = {6}
e) A U (B U C) = {1,2,3,4,5,6,7}
f) (A &#8745; B) &#8745; C = {}  NULL Set
g) (A &#8745; B) U C = {1,2,6,7}