A = {x∈N; x<3}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
B = {x∈Z; x≥−2}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
C = {x∈R; x<3}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
D = {x∈R; x≥2}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
E = {x∈R; x>0}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
F = {x∈R; x≤0}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
G = {x∈R; x+1≥0}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
H = {x∈R; −2≤x<3}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
I = {x∈R; 0≤x≤2}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
J = {x∈R; 0<x≤2}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
K = {x∈R; 1<x<2}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
L = {x∈R; x + 1<2 ∧ x−1≥−3}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
M = {x∈R; x−1<0 ∧ −2x<4}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>
P = {x∈R; 2x−3≥−1 ∧ 10−5x≥0}
<1; ∞)
(−2; 1)
<1; 2>
<−2; 3)
(−∞; 3)
{1; 2}
<−1; ∞)
(0; 2>
(−∞; 0>
(0; ∞)
(1; 2)
<−2; 1)
<0; 2>
<2; ∞)
{−2; −1; 0; 1; 2; ...}
(−∞; 2>
(−2; 3>