решите уравнение sin(п/2-x)=sin(-п/4) - №23679803

решите уравнение sin(п/2-x)=sin(-п/4)
- Предмет:
  Математика
- Автор:
  guerra
- 5 лет назад

Ответы 1

Cosx=-sinп/4Cosx=корень из2/2
- Автор:
  jaguar
- 5 лет назад
- 0
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4 Complete the sentences with the correct information from the text.
1. ... likes to play football. 6. ... spends a lot of time out of doors.
2. At the moment Rosy is ... . 7. The house is full of ... because Mark
3. James is very busy, so he likes archaeology, sleeps .... 8. James works ....
4. James likes to read .... 9. ... is seventeen.
5. Rosy is interested in ... .

Вот текст
Betsey's family
Robin:We want to meet your family. Betsey. Where are they?
Betsey: Oh, let me tell you about them.
My husband James is a very busy man. He's the manager of a bank in London. Normally he comes home at eight o'clock and watches football or reads The Times. He usually plays tennis on Sundays. It's his favorite pastime. When the weather is bad he plays tennis indoors. At the moment there are a lot of problems at his bank and he has to work day and night. He has a small bed in his office, so he sleeps there.
Rosy, my daughter, is seventeen. She is very busy. She is going to finish school this year. She plays the guitar and she is the best goalkeeper in her school. We don't see her at home very often because her hobby is horse riding. She likes to be out of doors. At the moment Rosy is in London. She is helping her aunt in her shop. November and December are very busy months for the shops. It's Christmastime.
Mark is three years younger. He is interested in history and archaeology, and he is a good football player too. He often goes on archaeological expeditions and our house is full of his equipment. At the moment he is on Salisbury Plain. We're going to visit him there. It'll be very interesting for you.
And my youngest son is Rob... I'll tell you about him later.
- Предмет:
  Английский язык
- Автор:
  deborahmays
- 5 лет назад
- Ответов:
  
  0
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вырази в заданных единицах.а) образ. 5сут.12ч =24ч*5+12ч=? 2 сут. =? 3сут. =? 4сут.8ч=?6сут.16ч= ? б)образец.115ч=4сут.19ч? 76ч=?сут.?ч 140ч=?сут.?ч 336ч=?сут.?ч
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- Автор:
  lamontl7g7
- 5 лет назад
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Пожалуйста сделайте проект тайна имени. Тайна имени Аделина.
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  Русский язык
- Автор:
  isabelle13
- 5 лет назад
- Ответов:
  
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Find and correct mistakes in relative clauses (in four sentences there are NO mistakes):
1. A diet who includes a lot of fruit is very good for you.
2. The girls who they are wearing blue hats go to my school.
3. The man which robbed you has been arrested.
4. Everyone who knew him liked him a lot.
5. This is the picture what was a big sensation at last year’s exhibition in Munich.
6. This is the best hotel I’ve ever stayed at.
7. A liar is somebody who often tells lies.
8. Rugby is a sport what played with an oval ball and in teams of fifteen.
9. Last week I found $20 in the street, that was such a nice surprise.
10. Ben is the boy Miranda is talking to him over there.
11. Tomorrow I am meeting the police officer who’s investigating my case.

Give definitions to the following nouns (see the example). Try to use different constructions (present, past, active, passive) and object and subject clauses:
Breakfast is a meal that is eaten in the morning.
1. Wine is a drink that is drink in the holidays.
2. A crocodile is
3. A hospital
4. Sumo
5. A millionaire
6. A bicycle
7. A winner
8. A wedding
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- Автор:
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- 5 лет назад
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