Предмет: Математика, автор: kydyrgychovak

6) (√3+√5-√3-√5)²;
помогитеееееее​

Ответы

Автор ответа: nanchic
0

Відповідь:

0

Покрокове пояснення:

\sqrt{3} і -\sqrt{3} в дужках взаємознищуються. Аналогічно \sqrt{5} і -\sqrt{5}. Тому в дужках залишиться 0. А це в квадраті теж 0.


bane17: Разве не (9-25) в второй степени
nanchic: нет, не так. Там нет умножения
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Итоговый тест 6 класс
1.Выберите правильный вариант ответа
1.Is there a/some baker`s?
2.There are any/some shops in that street.
3.There aren`t some/any supermarkets here.
4.My birthday is on/in 5th November.
5.Meet me on/at 9:30!
2.Выберите правильный вариант ответа
1.What are the…..of the game?
A laws B rules C guides
2.Jim does gymnastics at the sports……
A place B room C centre
3. A lion is…..than the elephant.
A smaller B smallest C small
4. We had a nice picnic in the ……
A restaurant B stadium C park
5. I’m not……to go to the cinema tonight .
A will B would C going
6. We met ten years……
A gone B ago C past
7. We were afraid to swim in the……. river.
A polluted B deserted C clean
8. Chess and backgammon are both …..games.
A table B bored C board
9.They often …….camping at the weekend.
A do B play C go
10. How……. some ice cream?
A like B many C about

11. Let’s watch the firework…….
A display B show C programme
12. On Christmas Day, we all…….gifts.
A transfer B exchange C change
13. Jim…….his homework at the moment.
A is making B is doing C does
14. John is very worried…….his son
A at B about C of
15. Does he………history at school?
A teaches B teach C teaching
16. Do you…….your teeth every day?
A wash B brush C do
17. Watch……! There’s a motorbike coming!
A up B out C over
18. I can drive a car but I….fly a plane.
A don’t know B can’t C can do
19. They usually go to school……foot.
A in B on C by
20. June is the …..month of the year.
A sixth B six C sixteen
21. There is……. food in the fridge.
A any B a C some
22. The …..is in the kitchen.
A bathtub B fridge C bookcase
23. It’s my birthday……5th August.
A at B in C on