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IxI≤5
x≤5 i x≥-5
IxI>3
x>3v x<-3
b.
IxI>4
x>4 v x<-4
Ix+2I<5
x+2<5 i x+2>-5
x<3 i x>-7
c.
Ix-1I<3
x<4 i x>-2
Ix-2I≥1
x≥3 v x≤1
d).
Ix+1I≤3
x≤2 i x≥-4
Ix-1I≤3
x≤4 i x≥-2
IxI≤5
IxI>3
x∈(-5;5)
x∈(-∞;-3)∨(3;+∞)
x∈(-5;-3)∨(3;5)
Ad b)
IxI>4
Ix+2I<5
x∈(-∞;-4)∨(4;+∞)
x∈(-7;3)
x∈(-7;-4)
Ad c)
Ix-1I<3
Ix-2I≥1
x∈(-2;4)
x∈(-∞;1>∨<3;+∞)
x∈(-2;1>∨<3;4)
Ad d)
Ix+1I≤3
Ix-1I≤3
x∈<-4;2>
x∈<-2;4>
x∈<-2;2>