Which of the following has no solution?

{x | x < 0} and {x | x > 0}
{x | x ≤ 0} and {x | x ≥ 0}
{x | x ≤ 0} or {x | x ≥ 0}

The best and most correct answer among the choices provided by the question is the first choice.

{x | x < 0} and {x | x > 0} since there is no number that is less than zero and greater than zero at the same time

I hope my answer has come to your help. God bless and have a nice day ahead!

Hello there.

Which of the following has no solution?

{x | x < 0} and {x | x > 0}