Try another version of this question Box 1: Enter your answer using interval notation. Example: [2.1,5.6172)
Express the set `W = { x | x < -4 or x ≥ 10 }` using interval notation.
`x in `
Use U for union to combine intervals. Example: (-oo,2] U [4,oo)
Enter DNE for an empty set. Use oo to enter Infinity. (-oo,-4) U [10,oo)