proszę o rozwiązanie zadania!
a) |x+3|<1
B)|x+2|>lub rowne 3
c)1/2|x|<lub rowne 8 i 1/2
d) |x-1|>2
e)1/3|x+6|<lub rowne 2/3
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a) |x+3|<1
x+3<1
x<-2
x+3>-1
x>-4
x∈(-4,-2)
B)|x+2|>lub rowne 3
x+2≥3
x≥1
x+2≤-3
x≤-5
x∈(-∞,-5>u<1,+∞)
c)1/2|x|<lub rowne 8 i 1/2
1/2x≤17/2
x≤17
1/2x≥-17/2
x≥-17
x∈<-17,17>
d) |x-1|>2
x-1>2
x>3
x-1<-2
x<-1
x∈(-∞-1)u(3,+∞)
e)1/3|x+6|<lub rowne 2/3
1/3(x+6)≤2/3
x+6≤2
x≤-4
x+6≥-2
x≥-8
x∈<-8,-4>
licze na naj
a) |x+3|<1
-1<x+3<1
-4<x<-2
x∈(-4,-2)
b)|x+2|≥ 3
x+2≥3 lub x+2≤-3
x≥1 lub x≤-5
x∈(-∞,-5>u<1,+∞)
c)1/2|x| ≤ 8 i 1/2 /*2
|x|≤ 17
-17 ≤x≤ 17
x∈<-17,17>
d) |x-1|>2
x-1>2 lub x-1<-2
x>3 lub x<-1
x∈(-∞-1)u(3,+∞)
e)1/3|x+6|≤ 2/3 /*3
|x+6|≤ 2
-2≤x+6≤2
-8≤x≤-4
x∈<-8,-4>