1. 4cos^2x-sinx-1=0 2.2cos^2x=2cos(п/2+x) 3.2cos2x=8sinx5 помогите - №24772374

1. 4cos^2x-sinx-1=0
2.2cos^2x=2cos(п/2+x)
3.2cos2x=8sinx5
помогите
- Предмет:
  Алгебра
- Автор:
  maliyaho5xl
- 5 лет назад

Ответы 0

Добавить свой ответ

Еще вопросы

какое было изменение восприятия мира на Руси в 15 веке?
- Предмет:
  История
- Автор:
  biscuitnyth
- 5 лет назад
- Ответов:
  
  2
- Смотреть
34 БАЛЛА СРОЧНО! РЕШИТЕ ЛЮБОЕ!
1)-0,5(1-3n)+4(0,2-0,1)-(0,1-0,7n) если n= 0,21
2) (3m-4n)k-m(6n+5k)-(nk-6mn), если m= -1, k= -3,5 , n=4
- Предмет:
  Математика
- Автор:
  houston9hks
- 5 лет назад
- Ответов:
  
  2
- Смотреть
And there's no doubt that new gaming technology ... in the future.

Выберите один ответ:
won't be developed
will be developed
will develop
Вопрос 22

Текст вопроса
Sarah's MP3 player has ... stolen.

Выберите один ответ:
been
be
being
Вопрос 23

Текст вопроса
You've ... to represent the team tomorrow.

Выберите один ответ:
had chosen
been chose
been chosen
Вопрос 24

Текст вопроса
The film ... on a true story.

Выберите один ответ:
was based
is basing
was being based
Вопрос 25

Текст вопроса
Did you know that ballpoint pens ... by a man called Biro?

Выберите один ответ:
are invented
invented
were invented
Вопрос 26

Текст вопроса
The actor was injured while the film was ... .

Выберите один ответ:
being made
is made
been made
Вопрос 27

Текст вопроса
Rolex watches ... in Switzerland.

Выберите один ответ:
make
are made
made
Вопрос 28

Текст вопроса
What? Paul ... ?

Выберите один ответ:
's been arrested
's arrested
been arrested
Вопрос 29

Текст вопроса
The actors ... interviewed before the premiere of the film.

Выберите один ответ:
are be
will
were
Вопрос 30

Текст вопроса
Paella ... with rice and seafood.

Выберите один ответ:
is maked
is make
is made
Вопрос 31

Текст вопроса
My phone is ... repaired, so I can't text my mum.

Выберите один ответ:
being
been
be
Вопрос 32

Текст вопроса
Our offices ... years ago.

Выберите один ответ:
will be built
are built
were built
Вопрос 33

Текст вопроса
French ... in many English schools.

Выберите один ответ:
teaches
is taught
taught
Вопрос 34
Текст вопроса
Both English and French ... in Canada.

Выберите один ответ:
are spoken
are spoke
speak
Вопрос 35

Текст вопроса
I realized that my bike ... !

Выберите один ответ:
had stolen
was stole
had been stolen
Вопрос 36
Текст вопроса
The school ... every week.

Выберите один ответ:
is cleaned
cleans
cleaned
Вопрос 37
Текст вопроса
So from the evidence, I can tell that the victim was killed ... the librarian!

Выберите один ответ:
of
by
for
with
Вопрос 38

Текст вопроса
The exam results ... to you by post.

Выберите один ответ:
will be sent
will sent
will send
Вопрос 39

Текст вопроса
Since 1989, millions of Gameboys ... around the world.

Выберите один ответ:
were sold
have been sold
had been sold
Вопрос 40

Текст вопроса
The race ... by a young Kenyan runner.

Выберите один ответ:
won
wins
was won
Вопрос 41

Текст вопроса
Video games ... in the 1970s.

Выберите один ответ:
were invented
was invented
invented
Вопрос 42

Текст вопроса
Nearly 2,500 people ... attacked by sharks every year.

Выберите один ответ:
will be
were
are
Вопрос 43

Текст вопроса
They ... work on the new road.

Выберите один ответ:
are started
have started
have been started
Вопрос 44

Текст вопроса
Modern video games ... with incredible graphics and sound effects.

Выберите один ответ:
are made
made
was made
Вопрос 45

Текст вопроса
[A]'Absolution' was Muse's best album. [B]When ... ?

Выберите один ответ:
did it recorded
was it recorded
is it recorded
- Предмет:
  Английский язык
- Автор:
  rosemary
- 5 лет назад
- Ответов:
  
  1
- Смотреть
по 3 предложения с деепричасттным и причастыми оборотами из худ литературы
- Предмет:
  Русский язык
- Автор:
  edmundo
- 5 лет назад
- Ответов:
  
  2
- Смотреть

How much to ban the user?

1 hour 1 day 100 years