Question

[|x|] =4 then interval of x is

Answer 1

Answer:

1) x < -4

2) x e (-4,-5] [4,5)

3) x e[ -4,4)

4) x e integers

Answer 2

Answer:

case 1

x is greater than 0

x equal 4

4 less than or equal x less than 5

4,5

case 2

x is less than 0

-x equal 4

4 less than equal -x less than 5

x belongs 4,5 union -5,4