1. My watch was stolen yesterday.2 When Paul entered the room , discussing his project. 3. Look! New cinema built! 4. The teacher sent ? 5.When to tall to him ? 6.Text should be translated .7.When the Pope arrived, things were packed.8.Word Andrew was soon forgotten . 9. --Where is this?-- It is translated . her translated hour and a half. 10. Where to build a new store ? 11. All exerises are done. We can go to the cinema. 12.Passive voice is often used in English.13 John Lennon is know not only England .14. The meeting will be held in the city center.15. This castle was built in 1830 years.16.I was allowed to go to the cinema.
Нет
a4=8 a1+3d=8 a1=8-3d
a9=-7 a1=-7-8d
a12=-17 a1=-17-11d
Попробуем их прировнять
8-3d=-7-8d 5d=-15 d=-3
8-3d=-17-11d 8d=-25 d=-3.125
-7-8d=-17-11d 3d=10 d=10/3
У нас получилось что все d разные, значит прогрессия не существует (кажется так.Не совсем уверен)