AIBÄS, FUNKCIJOS, LYGTYS - techmat.vgtu.lt
AIBÄS, FUNKCIJOS, LYGTYS - techmat.vgtu.lt
AIBÄS, FUNKCIJOS, LYGTYS - techmat.vgtu.lt
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Veiksmai su skaičių intervalais<br />
(−∞, a) ∪ [a,+∞) = R<br />
(−∞, a) ∪ (a,+∞) = R \ {a}<br />
(−∞, a) ∩ [a,+∞) = ∅<br />
(−∞, a] ∩ [a,+∞) = {a}<br />
Tarkime, kad a < b. Tada<br />
(−∞, b] ∩ [a,+∞) = [a, b]<br />
(−∞, b) ∩ (a,+∞) = (a, b)<br />
(−∞, a] ∩ [b,+∞) = ∅<br />
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