It's the things which are in $B$ but not in $A$. So it is $B-A$.mathlearn said:
A shaded region in terms of set notation refers to a portion of a set or Venn diagram that is visually represented by a shaded area. It indicates a specific subset or intersection of sets that satisfy a particular condition.
A shaded region is represented in set notation using set-builder notation, which includes a set of elements and a condition or rule that defines the elements within the set. The shaded region is typically enclosed in braces {} and the condition is written after a vertical bar |.
The shaded region in a Venn diagram represents the elements that are included in both sets, or the intersection of the two sets. It can also represent the elements that satisfy a specific condition or rule in a set.
To read a shaded region in set notation, start by identifying the elements included in the set. Then, read the condition or rule after the vertical bar | to determine which elements satisfy that condition and are therefore included in the shaded region.
The purpose of representing a shaded region in set notation is to visually and symbolically represent subsets or intersections of sets. It allows for a clearer understanding of the relationships between sets and the elements that satisfy certain conditions within those sets.
