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a fost răspuns

a. [-1;2] ∪ [0.5;4)
b.[-3.4;5]∪[-3.5;]
c.(1.4)∪[1,3]
d.[-π,-3]∪[-3.1;+infinit)
e.(-4,1)∪{-4,1}
f.(-infinit,-2.4)∪[, + infinit)
g.[0.+infinit)∪ N
h.(-infinit,-2)∪[-2.+infinit)
i.(3.+infinit)∪[-1.0]
j.(-infinit,-√2)∪[-1.+infinit)

Răspuns :

a) =[0,5;2]
c) =[1,3]
b) =[-3,5]
d)=[-3,1;-3]
e)= (-4,1)
f) =?
g)=[0,+infinit)