Find A n B if A={5, 10, 15, 20} and B={10, 2O, 25, 30}
THAT N IS AN UPSIDEDOWN U, DON'T KNOW WHAT THAT MEANS
http://www.solving-math-problems.com/math-symbols-set-intersection.html
It means intersection
which elements are in both sets? (overlap)
5 no
10 yes
15 no
20 yes
25 no
30 no
so
{ 10,20}
The "upside down U" stands for intersection.
It means that you are looking for all elements which are common to both A and B
A ∩ B = {10,20)
The upside-down U symbol (∩) represents the intersection of two sets. In this case, you need to find the elements that are common to both sets A and B.
To find the intersection of sets A and B:
Step 1: Identify the common elements between A and B.
- From set A: Common element = 10, 20
- From set B: Common element = 10, 20
Step 2: Combine the common elements.
- The intersection of sets A and B is {10, 20}.
Therefore, A ∩ B = {10, 20}.