Question

4) Select the correct answer.Choose A = B if the sets are equal and A + B if the sets are not equal.A = {4, 7, 10, 15}B = {10, 4, 15, 7}A = BA + B

Answer 1

In order to determine if both set are equal or not, you take into account that a set A is equal to other one B, if all elements of A are present in B, without importance of the order.

In this case you have:

A = {4,7,10,15}

B = {10,4,15,7}

You can notice that all elements of A are present in B, then A = B.