Ответ по предмету Алгебра: cos²t+ctg²t×cos²t-ctg²t

Предмет: История, автор: Nastya1158

Милые люди! помогите, пожалуйста:3 Надо написать сочинение по истории на тему "Конец 19 начало 20 веков: на пути к большой войне", пожалуйста!
Я вам буду очень благодарна^^
Заранее спасибо <3

1 год назад

Предмет: Биология, автор: stasia2

Определить видовые названия птиц. К каким экологическим группам они относятся?

1 год назад

Предмет: Английский язык, автор: conik96

Choose the correct Item.
1. Моllу used to___________watching cartoons when she was young.
A. loving B. loved C. love
2. First, he had dinner, then he___________ the newspaper.
A. read B. was reading C. had read
3. The Rosens___________abroad for fifteen years before they moved back to England.
A. lived B. have lived C. wore living
4. Peter was listening to his favourite CD when Paul___________.
A. came in B. was coming in C. had come in
5. You___________chew gum in class.
A. must B. mustn’t C. needn’t
6. I think History is less interesting___________ Geography.
A. from B. of C. than
7. Valerie was making the beds while Mark___________the floor.
A. was sweeping B. swept C. had swept
8. You___________have a driving license in order to drive a car.
A. mustn’t B. needn’t C. must
9. Brian isn’t as___________as Richard.
A. friendly B. friendlier C. friendliest
10. My grandfather often___________old firms.
A. has watched B. watches C. had been watching
11. Maria entered the room very quietly___________she didn’t want to wake anyone up.
A. while B. so C. as
12. You___________feed the dog. I fed it this morning.
A. needn't B. need C. must
13. Mery___________the house by the time it started to rain.
A. reached B. had reached C. was reaching
14. George newer___________eat vegetables when he was a teenager.
A. didn't use to B. uses to C. used to
15. I___________the ambulance siren walling as I was walking through the city centre.
A. heard B. was hearing C. had been hearing

16. A: Is Jessica___________than Susie?
B: No, I don’t think so.
A. talented B. as talented C. more talented
17. Had you___________to San Francisco before?
A. been B. went C. go
18. You___________make an appointment to see a doctor. The clinic is open 24 hours a day.
A. need B. needn't C. mustn’t
19. She___________a book all night and was very sleepy the next morning.
A. is reading B. had been reading C. was reading
20. Rachel was watering the plants while her children___________in the garden.
A. was playing B. were playing C. play

Choose the correct Item.
1. She ___________ her leg so she couldn't go water-skiing.
A. was breaking B. had broken C. broken
2. I hope Tracey ___________ home soon.
A. has been coming B. will come C. is coming
3. Did they ___________ travel a lot when they were first married?
A. using to B. used to C. use to
4. If they ___________ up early, I'll make them a big breakfast.
A. woke B. are waking C. wake
5. He called a taxi___________ he had finished packing.
A. as soon as B. while C. by
6. We ___________ to spend the afternoon relaxing in the garden.
A. will B. are going C. going
7. A: Sorry I’m late.
B: You should be! I___________for over an hour.
A. am waiting B. have been waiting C. wait
8. If your father comes home now, we ___________ a pizza for dinner.
A. are ordering B. order C. will order
9. They___________a table before they went to the restaurant.
A. are reserving B. had reserved C. were reserving
10. You may___________my camera if you promise to return it tomorrow.
A. to use B. used C. use
11. I ___________ my lawyer on Monday.
A. seen B. am seeing C. see
12. She turns on the answering machine every morning bofore she___________for work.
A. leaves B. has left C. is leaving
13. I'm afraid I___________ late for dinner this evening.
A. will be B. can be C. am
14. A: Have you lived alone before?
B: No, but I'm___________to it.
A. getting used B. used C. was used
15. If I___________work early tonight, I’ll give you a ring.
A. will finish B. finish C. finished
16. We___________for an hour before we found the perfect picnic spot.
A. had been driving B. have been driving
C. were driven
17. A: I've got a high temperature
B: I___________you an aspirin.
A. going to get B. get C. will get
18. Joan and Tim had their first baby five years ___________.
A. since B. ago C. before
19. A: Where___________going for your birthday?
B: To La Mama’s.
A. do you B. are you C. will you
20. By the time she___________to the bus station, the bus had already left.
A. was getting B. gets C. got

1 год назад

Предмет: История, автор: Alexbatya228

каким занятиям благоприятствовала природа Вавилонского царства?

8 лет назад

Предмет: Геометрия, автор: Dasha20040000

Помогите пожалуйста №30

8 лет назад

cos²t+ctg²t×cos²t-ctg²t​

Ответы

cos²t+ctg²t×cos²t-ctg²t