Предмет: Математика, автор: milkiv83

cos( 3x + n:6 ) = -1

Natasha344: что такое n? pi?

milkiv83: да

Ответы

Автор ответа: manyny06

0

Ответ:

решение смотри на фотографии

Приложения:

Автор ответа: Natasha344

0

Ответ:

3x+pi/6 = pi + 2pi*k (k принадлежит множеству целых)

3x = 5pi/6 + 2pi*k

x = 5pi/18 +2pi/3*k

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: 123820

Какое проверочное слово в слове вершина

1 год назад

Предмет: Русский язык, автор: yonzaknadya

Сколько букв в слове мама

1 год назад

Предмет: Английский язык, автор: alenaalena201

Role play.
Harold is giving an interview for a health magazine.
Student A-Harold
Student B-an interviewer .
по тексту составить диалог
Ask and answer questions about Harold`s routines and lifestyle . Make some notes first.
Harold is a bank manager in town. He's a health freak. He wants to live to be a hundred, so health is very important to him.
He gets up at five o'clock in the morning and lifts dumb-bells for thirty minutes. For breakfast he eats a raw egg with garlic and chili pepper. It tastes disgusting. He leaves for work at 7 o'clock. He never goes by bus and he thinks that cars are extremely dangerous. He walks with a mask over his nose and mouth everywhere. He also wears a uniform in his office which he designed to protect himself from dust and dirt.
At the office he washes his hands ten times a day and he wears gloves to pick up the telephone in case it "dirty".
He takes his lunch to work with him. He eats fifteen sunflower seeds and one onion. He is sure that the lunch which the firm provides isn't good for him.
After work he rushes home to water the plants. He has hundreds of plants, because he provide oxygen. In the evening je sometimes listening to the radio, but never watches TV because it might damage his eyesight.
On Mondays he goes to a fitness club and on Tuesday to a vegetarian cookery class. He rarely goes to the cinema or the theatre - there are far too many germs. He goes to bed early. In summer he sleep in a tent in the garden. On the first day of every month he sees the doctor, just to make sure that he isn't ill. After all, he doesn't want to find himself in hospital.

1 год назад

Предмет: Математика, автор: P2008a

Если середина первой половины июня среда, то середина второй половины июня того же года это

Четверг, среда, вторник, понедельник, пятница, суббота, воскресенье

8 лет назад

Предмет: Литература, автор: lisenok357

Помогите срочно составить план пж.
По произведению Паустовского "теплый хлеб"
Вот начало плана, помогите продолжить.
1. История раненного коня.
2. Мельник Панкрат.
3. Зима
4. Филька по прозвищу "ну тебя!"

8 лет назад