Let A = {1, 2, 4, 5, 6}, B = {2, 3, 4}. Then A \\ B is _________Question 2Answera.{1, 2, 3}.b.{1, 5, 6}.c.{2, 4, 6}.d.{3, 5, 6}
Question
Let A = {1, 2, 4, 5, 6}, B = {2, 3, 4}. Then A \ B is _________
Question 2
Answer
- a. {1, 2, 3}.
- b. {1, 5, 6}.
- c. {2, 4, 6}.
- d. {3, 5, 6}.
Solution
The operation "A \ B" means "the set of all elements in A that are not in B".
So, we start by listing out the elements in set A, which are {1, 2, 4, 5, 6}.
Then we remove any elements that also appear in set B, which are {2, 3, 4}.
The number 2 and 4 are in both sets, so we remove them from our list.
The number 3 is not in set A, so it doesn't affect our list.
After removing, we are left with {1, 5, 6}.
So, A \ B = {1, 5, 6}.
Therefore, the answer is b. {1, 5, 6}.
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