Answers

2016-01-17T20:08:36+05:30
The union is consist of a and b
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2016-01-17T20:28:53+05:30
Given A and B are subsets of union that means SET A and SET B are subsets of union of A and  B
 for eg ,Let A be  (1,2,3)
                  B be   (5,6,7)
                    then AUB=(1,2,3,4,5,6) 
                    HERE BOTH A AND B ARE SUBSETS OF AUB
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