In which of the following sets A – B is equal to B – A?(a) A = {1, 2, 3}, B = {2, 3, 4}(b) A = {1, 2, 3}, B = {1, 2, 3, 4}(c) A = {1, 2, 3}, B = {2, 3, 1}(d) A = {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}I have been asked this question in class test.My question is taken from Set Operations in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

In which of the following sets A – B is equal to B – A?(a) A = {1,

1.	In which of the following sets A – B is equal to B – A?(a) A = {1, 2, 3}, B = {2, 3, 4}(b) A = {1, 2, 3}, B = {1, 2, 3, 4}(c) A = {1, 2, 3}, B = {2, 3, 1}(d) A = {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}I have been asked this question in class test.My question is taken from Set Operations in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics
Answer» The CORRECT option is (C) A = {1, 2, 3}, B = {2, 3, 1} Best explanation: A- B= B-A = EMPTY set.

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