
Задание 15 ЕГЭ
Authored by Екатерина Екатерина
Information Technology (IT)
12th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1. Когда конъюнкция нескольких переменных равна 1?
Когда хотя бы одна переменная равна 0
Когда все переменные равны 1
Когда хотя бы одна переменная равна 1
Когда все переменные равны 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Когда дизъюнкция нескольких переменных равна 0?
Когда все переменные равны 0
Когда все переменные равны 1
Когда хотя бы одна переменная равна 1
Когда хотя бы одна переменная равна 0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Когда импликация A → B равна 0?
A = 0, B = 0
A = 0, B = 1
A = 1, B = 1
c) A = 1, B = 0
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4. Какое выражение равносильно импликации A → B?
A ∨ B
A ∧ B
¬A ∨ B
¬B → A
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5. Чему будет равно выражение A ∧ (B ∨ C), если A = 1, B = 0, C = 1?
0
1
6.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Для какого наименьшего целого числа А формула тождественно истинна, то есть принимает значение 1 при любых целых неотрицательных x и y?
((x^2 ≤ A) \/ (x > 7)) /\ ((y^2 > A) \/ (y ≤ 10))
7.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
На числовой прямой даны два отрезка: P = (-4; 10) и Q = (0; 19]. Укажите наибольшее количество точек, принадлежащих отрезку A, что формула
(x ∈ P) \/ ((x ∈ A) /\ ¬(x ∈ P) → (x ∈ Q))
истинна при любом значении переменной х, т.е. принимает значение 1 при любом значении переменной х.
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