Odpowiedzi

2009-11-07T10:52:13+01:00
A) R - (3,+∞)
(-∞, 3]

b) R - {4}
(-∞, 4) u (4, +∞)

c) R - {-8,0}
(-∞, -8) u (-8, 0) u (0, +∞)

d) R - (-3,4]
(-∞, -3] u (4, +∞)
2 5 2