Question

a{ 1,2,3,4,5} b{2,3,4,7} a∆b​

Answer 1

Answer:

I don't know this answer

Answer 2

Answer:

I hope this answer

Step-by-step explanation:

A∆B which is called the symmetric difference between A and B is defined as (A-B)U(B-A).

Now, A-B is the set of all elements which are in A but not in B. So, A - B = {1,2}.

Similarly, B-A is the set of all elements which are in B but not in A. So, B - A = {5}.

Hence A ∆ B = (A-B)U(B-A) = {1,2,5}