Answer:
False.
Step-by-step explanation:
Since, a set is called the subset of a set if that set contains all the element of the set.
That is, B is called subset of a set A,
If Set A contains all the element of B,
Since, the element of set {3} is 3,
And, the elements of set {1,2,4,5,6} are 1,2,4,5,6
Thus, 3 is not contained by set {1,2,4,5,6}
Hence, {3} is not a subset of set {1,2,4,5,6}
Given statement is FALSE.
