Answer :
the solution to this sets union is:
{x | x = 2} ∪ {x | x ≥ 2}
= { x | x >= 2 }
that is the total solution of the union., the second set is a superset of the first, so the total solution is the second set itself.
{x | x = 2} ∪ {x | x ≥ 2}
= { x | x >= 2 }
that is the total solution of the union., the second set is a superset of the first, so the total solution is the second set itself.