Question

Which represents the compound inequality x < -2 or x ≥ 3 using interval notation?
A. x e(-∞,-2) U [3,∞)
B. x e(-∞,-2) n[3,∞)
c. x e(-2,3]
d.x e(-∞,-2]
Need help i dont understand this one at all.

Answer 1

x<-2
ipmlies x e(-infinity,-2)
x>=3 implies
x e[3, infinity)
sooverall x e(-infinity,-2) U [3, infinity)