|sinx|=2cosx - (корень из 3)cosx

|sinx|=2cosx - (корень из 3)cosx
- Предмет:
  Математика
- Автор:
  elliott
- 6 лет назад

Ответы 2

|sinx|= 2cosx - √3cosx

1) sinx ≥ 0

sinx = 2cosx - √3cosx

sinx = cosx (2 - √3)

cosx ≠ 0

tg x = 2 - √3

x₁ = arctg ( 2 - √3) + πn, n∈Z

1) sinx ≤ 0

-sinx = 2cosx - √3cosx

-sinx = cosx (2 - √3)

cosx ≠ 0

tg x = -(2 - √3)

x₂ = -arctg ( 2 - √3) + πn, n∈Z
- Автор:
  jasperlara
- 6 лет назад
- 0
Ответ: X2=-arctg (2- √3)+πn, n∈Z
- Автор:
  zion2
- 6 лет назад
- 0
Добавить свой ответ

Еще вопросы

Ребят,помогите пожалуйста.напишите краткое содержание О.Генри "Дары волхвов" просто напишите о чём он и какой смысл и всё!!заранее спасибо*пару предложений,самое главное...
- Предмет:
  Литература
- Автор:
  volvo
- 6 лет назад
- Ответов:
  
  1
- Смотреть
помогите заполнить пробелы правильно преобразовав слова в скобках....
I like this car . Its always been very....(rely). You are always .... . Isn't there anything that makes you happy? (misery) It was a very ....experience and it took a long time to get over it. (upset) The road signs were so ...that I didn't know which way to go.(confuse) I'm afraid he's got very ...habits. (irritate) It was only after a great deal of persistence that I got a ...answer. (satisfy) It takes a lot of determination to ...in a....business. (success, compete) His arrogant attitude made him ....with the other people in the office . ( popular) That was a rather ...remark. You've obviously upset him. (tact) I don't know why they bother to print these bus timetable. They are completely ... . (rely) Don't you think it's rather ....to play your music so loudly at night? (consider) That was an ....thing to say. You know how ...she is. (kind, sense) I must ...these trousers. They are too long for me. ( short) Don't try to do things too quickly . Set yourself ...targets. (real) Landing a spacecraft on the moon was a great ....for mankind. ( achieve) he may be a good actor , but as a singer he is a complete .... . (fail) They rejected the candidate because he was totally ... . (suit ) I wouldn't say they were rich , but they're certainly ... . (wealth)
- Предмет:
  Английский язык
- Автор:
  phoenix100
- 6 лет назад
- Ответов:
  
  1
- Смотреть
три курицы за 3 дня снесут 3 яйца. Сколько яиц снесут 6 куриц за 6 дней?
- Предмет:
  Математика
- Автор:
  ryanjackson
- 6 лет назад
- Ответов:
  
  2
- Смотреть
в)20:33целых1/3-(4целых7/25-1,28):(0,75+3целых1/4)*0,2
- Предмет:
  Математика
- Автор:
  bubble buttqfvm
- 6 лет назад
- Ответов:
  
  1
- Смотреть

|sinx|=2cosx - (корень из 3)cosx

Ответы 2

Топ пользователей