Предмет: Алгебра, автор: Oxan6ka

вычислить интеграл: S сверху 2 с низу -1 (3х в квадрате -2х+1)dx

Ответы

Автор ответа: kiskam
0

boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{boxed{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}

Приложения:
Автор ответа: Nixoida
0

Находим первообразную без прибавления константы, то есть без +С

x^3 - x^2 + x

И находим разность между подставленными в выражение выше 2 и -1

(2^3-2^2+2) - ((-1)^3-(-1)^2-1)=(8-4+2)-(-1-1-1)=6+3=9

Приложения:
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Task 1. Read the dialogue Ben and Katy /Прочитайте диалог Бен и Кети и выполните следующие задания (6 баллов)



Ben: You always get good marks at school. You’re lucky! I study but I don’t always get good marks.

Katy: I’m not lucky! I know how to study. I always do three things. Do you want to know them?

Ben: Yeah, please!

Katy: OK, number one. Always study in a quiet place.

Ben: I usually study in my bedroom. It’s very quiet.

Katy: Number two. Have a clear desk!

Ben: Right. A clear desk. My desk isn’t clear. There are lots of papers and books and pens on it.

Katy: Well, that isn’t very good!

Ben: What’s tip number three?

Katy: Have lots of breaks. I always study for thirty minutes. Then I have a break for five minutes. I move my arms and legs and drink some water. Then I study again for thirty minutes.

Ben: I never have a break. I sometimes study for two or three hours.

Katy: That isn’t a good idea! It’s important to get up and move your body

Ben: OK. Thanks. Next time I think I can get good marks!





Choose the correct option to complete the sentences

Ben…
studies but does not do well
does not study
studies and does well
does not go to school


Ben usually studies…
in the library
at home
in his friend’s house
in the park


On Ben’s desk there are…
papers, books and pens
pencils, books and pens
a pencil case and pens
copybooks and a laptop


Fill in the gaps with ONE WORD only.

Katy: Have lots of breaks. I always ____________for thirty minutes. Then I have a break for five minutes.

Ben: I never have a ____________. I sometimes study for two or three hours.

Ben: Next time I think I can get _________ marks!
Предмет: Обществознание, автор: игронатор