1.Rezolvati in Z inecuatiile:
a) x-5>0
b)x+3>0
c)x-5<0
d)x+1≤0
e)3x-6≤0
f)4x-5≥7
g)5-x<4
h)5x-4<9
I) 4x-7 j)5(x-1)≤3(x+1)
k)2x+5≤3(x-1)+8
l)3(x-5)<4(x+5-3
2.Determinati elementele multimilor
A={x∈Z*/|x|≤5=
B={x∈Z/x²≤3}=
C={x∈N*/|x+5|≤2}=