Вопрос школьника по предмету Алгебра
1. Решите неравенство: (х-1)∙(х-2)<0
A) (-2;-1)
B) (1;2)
C) (-1;2)
D) [-1;1)ᴗ(2;+∞)
E) (-∞;1]ᴗ(2;+∞)
2. При каких значениях х значение квадратного трехчлена -х^2+х+4 будет больше -2? Найдите целые решения неравенства. [3]
3. Решите систему неравенств:
{ (х^2+4х+3<0
16-3(4-х)>х)
4. Решите систему неравенств:
{(х^2-х+6>0
(х-5)(х+5)≤0)
5. Решите неравенство: (х^2 (3-х))/(х^2-8х+16)≤0
СОЧ! Срочно!!! Даю 100 баллов!!!
Ответ учителя по предмету Алгебра
Ответ:
а) -4
б)-3
a)3
b)4
a)-6
b)4
a)2
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