Answer:
a) r ∈ O
b) p ∈ A
Step-by-step explanation:
Given:
[tex]O=\{0,r,a,n,g,e\}\\A=\{a,p,1,e\}\\B=\{b,a,n\}[/tex]
To put: symbols ∈ or ∉ in the blanks.
Solution:
A set is a well - defined collection of objects.
In mathematics, an element of a set refers to the object that belong to that set.
a) r ∈ O
b) p ∈ A