Mathematics
If universal set ξ = {x : x ∈ W, x < 5} and set A = {1, 3}, then complement of set A is equal to :
{0, 2, 4, 5}
{0, 2, 4}
ϕ
{2, 4}
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Answer
Universal set ξ = {x : x ∈ W, x < 5}
Universal set ξ = {0, 1, 2, 3, 4}
Set A = {1, 3}
Complement of A means all the elements of universal set which are not in A.
A' = {0, 2, 4}
Hence, option 2 is the correct option.
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