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Question
Which of the following sets are empty sets?
Options
Set of intersecting points of parallel lines.
Set of even prime numbers.
Month of an English calendar having less than 30 days.
P = {x | x ∈ I, -1 < x < 1}
Solution
Set of intersecting points of parallel lines.
Explanation:
Since,
the set of intersecting points of parallel lines = {};
the set of even prime numbers = {2};
the Month of an English calendar having less than 30 days = {February}; and
P = {x | x ∈ I, -1 < x < 1} = {0}
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