edited by
1,085 views
1 votes
1 votes
The number of elements in the power set of {{1,2},{2,1,1},{2,1,1,2}} is:
edited by

2 Answers

1 votes
1 votes
since as we know that in set no element is repeated, now in each set if u remove repeatation  then u will get {{1,2},{1,2},{1,2}} since it has again repeatation again u need to remove repeatation then finally u will get {{1,2}} now powerset will be {phi,{1,2}}
0 votes
0 votes
There are three elements in the set. Hence, number of elements in the power set = 2^3 = 8

Related questions

6 votes
6 votes
3 answers
1
junaid ahmad asked Dec 17, 2017
7,210 views
Q.A strictly binary tree with 10 leavesA) cannot have more than 19 nodesB) has exactly 19 nodesC)has exactly 17 nodesD) has exactly 20 nodes
0 votes
0 votes
1 answer
3
junaid ahmad asked Dec 17, 2017
2,170 views
Let S be an NP-complete problem.Q and R are other two problems not known to be NP.Q is polynomial time reducible to S and S is polynomial time reducible to R.Which of the...