Identify the empty set, the singleton set and the pair set.
A=0
The given set A=0
Set A has only one element 0, a set having only one element is called a singleton set.
Hence, the given set A=0 is a singleton set.
Classify the given set as finite, infinite, empty or singleton set:
{ The set of students more than 3 m tall}
C={x:x2=25,x∈N}
D={x:5x-4=0,x∈W}
B={x:x2-9=0,x∈Z}