Question

Let A = {1, 2, 3, 4, 5, 6). Insert the appropriate symbol ∈ or ∉ in the blank space: 4. . . A

Answer 1

Let A = {1, 2, 3, 4, 5, 6).is given
then, A to Q,,,
4 is present in the set A means 4 is the member of set A.

so for being a member this ∈ sign is given

so,( 4 ∈ A ).
........ Thanks be always brainliest......

Answer 2

here , A = {1, 2, 3, 4, 5, 6} . e.g., A is the collection of all natural number less than and equal to 6. means , all numbers e.g., 1 , 2, 3, 4, 5, 6 belong to A.

you should remember that,
$\in$ is symbol of " belongs to "
$\notin$ is symbol of " doesn't belong to "
here, 4 belongs to A
so, $\bf{4\in A}$