0
0/1
0/1/4
0/1/4/3
0/1/4/3/3 . Beispiel 2 - 16 |x + 3| + |x + 4| < 9 .
L1 = {x ∈ ℝ|- 8 < x < -4}, . L2 = {x ∈ ℝ|- 4 ≤ x < -3}, . L3 = {x ∈ ℝ|- 3 ≤ x <}, . L = L1 ∪ L2 ∪ L3 = {x ∈ ℝ|- 8 < x < 1}} .
alternativ mit Maple: . solve(abs(x+3)-abs(x+4)<9,x) .