СРОЧНО!!! ДАЮ 50 БАЛЛОВ!!
1.
Пусть U = N, A {кратные числа 6, меньше 31}, B = {делители 30} и С = {простые числа, меньше 30}.
а) выпишите элементы множества : А, В, С;
b) найдите:
1. А П В; (Если что П - это знак пересечения).
2. В П С;
3. А П С
4. А П В П С.
с) найдите А U B U C; (если что U - это знак объедидения).
d) проверьте выполнения равенства:
n(A U B U C) = n(A) + n(B) + n(C) - n(A П В) - n(B П С) - n(A П С) + n(A П В П С).
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И не писать всякую ерунду чтобы забрать баллы!
халявщиков всегда здесь хватало
Бесплатный сыр бывает только в мышеловке.
разобраться хотите или только списать готовое?
Списать и разобраться
Ответы
Ответ дал:
2
Ответ:
A=(12;18;24;30) В=(2;3;5;6;10;15;30) С=(2;3;5;7;11;13;17;17;19;23;29)
В П С=(2;3;5) А П В= нет А П С=нет А П В П С=нет
А U B U C=(2;3;5;6;7;10;11;12;13;15;17;18;19;23;29;30)
n(A U B U C) = n(A) + n(B) + n(C) - n(A П В) - n(B П С) - n(A П С) + n(A П В П С)-верно
16=4+7+10-3-0+0 16=16
Пошаговое объяснение:
А это правильно?
Естественно
Спасибо . Мне 5 поставили!!
Это отлично
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