if 2 sets A and B are having 99 elements in common ,then the number of elements common to each of the sets A*B AND B*A ARE

Asked by TARUN Garg | 3rd May, 2013, 06:19: PM

Expert Answer:

if 2 sets A and B are having 99 elements in common ,then the number of elements common to each of the sets A*B AND B*A would be 99 X 99 as you can choose 99 elements which are common to both A and B in 99 ways separately in both the sets and when you will multiply these, you will get the same answer.  

Answered by  | 4th May, 2013, 03:43: AM

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