Предмет: Алгебра, автор: lena2010zheka

знайти cos405.

Опишите пожалуйста по-пунктам! Зарание спасибо

Ответы

Автор ответа: 5Daisy5

0

cos405= cos (360+45)

cos45=П/4=кор из2/2

все очень просто,раскладываешь cos405 на 360+45 и находишь cos 45

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: frutkatop1gg

V. Used to / past simple
1. Change the sentences into Past Simple
1) They used to have dinner in the restaurant by the sea
2) Ye used to think about entering the Moscow State University
3) We used to have breakfast at 8 a.m
4) I used to attend a driving school when a student
5) My parents used to live at the seaside
6) My grandparents used to go on river cruises every autumn
7) Our relatives used to visit us in Moscow regularly
8) My dad used to repair his car quite often
9) We used to surf the internet
10) My classmates used to visit me every evening
2. Change the sentences using Used to.
1) We travelled to the UKevery summer.
2) I played the quitar every day
3) He had a shower before dinner
4) They lived not far from the city centre.
5)I didn,t talk on the phone while eating.
6) Our parents went to work by bus
7) She worked late at night.
8) Dad had a shower before breakfast
9) The town was very small some years ago.
10) The group played live concerts

IV. Used to
1. Make sentences with Used to according to the model.
E.g. She thought about her sons some time ago. = She used to think abouther sons

\

s

s

s
s
s
s
s
s
s
s
s
ss

s

6 лет назад

Предмет: Алгебра, автор: namzyrajsajsuu

3(2х+5)-2(3х+1)=2 ну пж ржрржпжжпжжпж

6 лет назад

Предмет: Українська література, автор: mariyasergeeva201119

який твір називається гімном

6 лет назад

Предмет: Математика, автор: Medina95

где находится пи/2 на окружности?

Вверху или внизу?

10 лет назад

Предмет: Геометрия, автор: Medina95

Решите задачу, она ниже(Вложения)

10 лет назад