Universal set, is a set which has elements of all the related sets, without any repetition of elements. So, it means that everything inside the rectangle is part of the universal set, be careful if there are two sets, because there's probably a repetition, like set A has 1,2,3 and set B has 1,4,5. The universal set for that is {1,2,3,4,5} no repetition.
Set A subset of universal set, If A is a subset of the universal set U, then all the elements in U that are not in A are called the complement of A. So it is 2,4, and 6 because it can only be found inside the circle and the numbers are unique because there is no repetition outside the circle.
Answers & Comments
Answer:
U={1,2,3,4,5,6,7}
A={2,4,6}
Step-by-step explanation:
Universal set, is a set which has elements of all the related sets, without any repetition of elements. So, it means that everything inside the rectangle is part of the universal set, be careful if there are two sets, because there's probably a repetition, like set A has 1,2,3 and set B has 1,4,5. The universal set for that is {1,2,3,4,5} no repetition.
Set A subset of universal set, If A is a subset of the universal set U, then all the elements in U that are not in A are called the complement of A. So it is 2,4, and 6 because it can only be found inside the circle and the numbers are unique because there is no repetition outside the circle.