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VIII.10 Intervale *

Pentru a rezolva corect exercitiile reprezentati intervalele pe axa reala.

1. Daca (-a,3] ∩ (2,5] = (2,3], atunci a є #
2, educational activities , ,
2. Daca (-∞,a]∩ (0,2) = Φ, atunci a є #
1, , ,
3. Daca [a,%2b∞) ∩ [3,%2b∞) = [3,%2b∞), atunci a є #
0, , ,
4. Daca [a,4) U (0,5) = (0,5), atunci a є #
(-inf,3], , ,
5. INTERVALE ATENTIE: pentru ∞ veti tasta inf
(-inf,0], improve results , ,
6. Daca (a,%2b∞)∩ [-2,4) = (0,4), atunci a = #
(0,4), , ,
7. Daca [0,a) ∩ (-2,3) = [0,1), atunci a = #
[-2,%2binf), , ,
8. Daca [a,3] U (2,%2b∞) = [2,%2b∞), atunci a = #
8-intervale2.JPG, , ,
9. Daca X si Y sunt intervale ce satisfac simultan conditiile X∩Y = [1,3), X U Y = (-2,5) si X - Y = (-2,1), atunci X = #
45, , ,
10.
(-2,3), , ,