edited by
5,370 views

4 Answers

Best answer
21 votes
21 votes

A={1,2, 3,4, 5, 6, 7, 8} And B =  {1, 3, 5, 6, 7,8,9}

A  (symmetric difference) B = Elements which are in A but not in B  $\cup$ Elements which are in B but not in A

                                       = (A - B) $\cup$ (B - A)

                                      = { 2 , 4 } $\cup$  { 9 }  = { 2 ,4 ,9 }

Option B is correct..

edited by
3 votes
3 votes
A={1,2,3,4,5,6,7,8} and B={1,3,5,6,7,8,9}

A U B = {1,2,3,4,5,6,7,8,9} , A ∩ B = {1,3,5,6,7,8}

Symmetric difference = (A U B) - (A ∩ B) = {2,4,9}

option B
2 votes
2 votes
Symmetric Difference of two sets A and B is a set which contains elements which are either in set A or in set B (but not both)

clearly 2, 4 & 9 are such elements which are contained in only one of the 2 sets (exactly 1 of the two sets)

A⊕B = {2,4,9}

so answer is option B
1 votes
1 votes
option B is My Answer
Answer:

Related questions

5 votes
5 votes
2 answers
1
sh!va asked May 7, 2017
6,786 views
If $L$ and $P$ are two recursively enumerable languages then they are not closed underKleene star $L^*$ of $L$Intersection $L \cap P$Union $L \cup P$Set difference