Даны множества A - {x ∈ R : -4 ≤ x < 3} и B - {x ∈ R : 2 ≤ x ≤5}. Множество В-А имеет вид

1) ∅
2) {x ∈ R : 3 ≤ x ≤ 5}
3) {x ∈ R : 5 < x < +∞}
4) {x ∈ R : -∞ < x < 3}
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