Предмет: Математика, автор: Effroto

Ex 19 va rog mult..20b.

Приложения:

Ответы

Автор ответа: liftec74

0

Ответ:

Пошаговое объяснение:

a) (-3;2)∩(-2;3)=(-2;2)

b) (-∞;5)∩(-1;2)=(-1;2)

c)(8.3;+∞)∩(-3;7]=∅

d)(-∞;∞)∩(0;∞)=(0;∞)

e)(-√7;-2.3]∩(-2;7)=∅

f) (-3;7]∩[7;+∞)=7

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Mobile Phones in Schools
1. For several years now, schools have debated whether or not pupils should be allowed to bring their mobile phones to school. While there are some advantages to having mobiles at school, I personally believe that it is better for students to leave them at home.
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