Let A and B be sets in a finite universal set U. List the following in order of increasing size.a) | A |,. | A ? B |,. | A ? B |. | U |.| ? |________________b) |A ? B|. | A ? B|. | A | + | B |. |A ? B |, | ?|

Solution :Step 1:The objective of this question, given finite set A and B is to arrange in increasing order.Step 2:Given that:A and B are the two finite sets| A |,. | A B |,. | A B |. | U |.| |.Let us consider:A = {1, 2}B = {2,3}So, A = {1,2} | A | = 2 elements| A B | = = 3= = 1So, Now we can arrange in increasing order according to the cardinality value.| | < | A B | < | A |