Let S = {(x, y): x2 + y2 = 1, - 1 ≤ x ∈ R ≤ 1 and - 1 ≤ y ∈ R ≤ 1} Which one of the following is correct?
1
S is a one - one function
2
S is a many - one function
3
S is a bijective mapping
4
S is not a function
Let S = {(x, y): x2 + y2 = 1, - 1 ≤ x ∈ R ≤ 1 and - 1 ≤ y ∈ R ≤ 1} Which one of the following is correct?