Предмет: Алгебра, автор: tyhrdg

Sin(п/2)- cos(3п/2)+cosП- tg0+ctg 2 (3п/2)

Ответы

Автор ответа: Universalka

0

$Sin frac{ pi }{2} -Cos frac{3 pi }{2}+Cos pi -tg0+Ctg ^{2} ( frac{3 pi }{2} )= 1-0-1-0 +0=0$

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: esenbekovap04

... health is above ... wealth??

6 лет назад

Предмет: Английский язык, автор: tasmuhamedovamadina2

Past Simple vs Present Perfect
1. I'm hungry. I didn't eat / haven't eaten anything today.
2.Grandma visited / has visited us last weekend.
3.Look! Tomek broke / has broken his arm.
4.Sorry, Sir. I forgot / have forgotten my homework.
5.Mrs Ziarko worked / has worked at this school for 5 years.
6.Uncle Tim was / has been in hospital since Friday.
7.Did you / Have you ever read a book in English?
8.They never lived / have never lived in a big city.
9.We didn't clean / haven't cleaned our room. It's really messy.
10.Ola wrote / has written a Maths test last week.
1. We ...... not...... (write) any English tests this month.
2. My grandma ................
... (visit) 15 countries in her life.
3. I ................... (eat) pizza for lunch yesterday.
4. They ............... (read) an interesting book last week.
5. My dad .................. (swim) in the Pacific Ocean in 1995.
6. .............. you ever .............. (play) rugby? 7. Mr Mandzelowski .............. (teach) at our school since 1999.
8. I'm thirsty. I .............. not .................... (drink) anything today.
9. She ...................... (see) a penguin in a zoo last August.
10. They're very proud because they ........................ (climb) Mount Everest.

Помогите срочно пж!!!

6 лет назад

Предмет: Математика, автор: emkirill96

Найдите две дроби,каждая из которых больше 3/7 и меньше 4/7

6 лет назад

Предмет: География, автор: superalisa16

найти все прилагательные

9 лет назад

Предмет: Литература, автор: TigerM

Каким гостям Вера Николаевну симпатизирует Куприн

9 лет назад