Odpowiedź:
a)
|x-5| < 4
x - 5 < 4 v x - 5 > - 4
x < 9 v x > 1
x ∈ (1; 9)
b)
|x+4| < 5
x + 4 < 5 v x + 4 > - 5
x < 9 v x > -1
x ∈ (-1; 9)
c)
|x-3| > 2
x - 3 > 2 v x - 3 < - 2
x > 5 v x < - 5
x ∈ (-5; 5)
d)
|x+2| > 3
x + 2 > 3 v x + 2 < - 3
x > 5 v x < - 1
x ∈ (-1; 5)
e)
|6-x| < 4
6 - x < 4 v 6 - x > - 5
-x < -2 v - x > - 11
x > 2 v x > 11
x ∈ (2; 11)
f)
|2-x| > 3
2 - x > 3 v 2 - x < - 3
- x > 1 v - x < - 5
x < - 1 v x > 5
x ∈ (- 1; 5)
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Odpowiedź:
a)
|x-5| < 4
x - 5 < 4 v x - 5 > - 4
x < 9 v x > 1
x ∈ (1; 9)
b)
|x+4| < 5
x + 4 < 5 v x + 4 > - 5
x < 9 v x > -1
x ∈ (-1; 9)
c)
|x-3| > 2
x - 3 > 2 v x - 3 < - 2
x > 5 v x < - 5
x ∈ (-5; 5)
d)
|x+2| > 3
x + 2 > 3 v x + 2 < - 3
x > 5 v x < - 1
x ∈ (-1; 5)
e)
|6-x| < 4
6 - x < 4 v 6 - x > - 5
-x < -2 v - x > - 11
x > 2 v x > 11
x ∈ (2; 11)
f)
|2-x| > 3
2 - x > 3 v 2 - x < - 3
- x > 1 v - x < - 5
x < - 1 v x > 5
x ∈ (- 1; 5)