user-avatar
nhathuy7bhvpt
2 năm trước
Cho biểu thức P= cănx-1/x+8. Tính GTLN của biểu thứcP
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

II. Choose the best answer. 1. We can’t go along here because the road........................ ​A. is repairing​B. is repaired​C. is being repaired​D. repairs 2. The story I’ve just read...................Agatha Christie ​A. was written​B. was written by​C. was written from​D. wrote by 3. I’m going to go out and................................................. ​A. have cut my hair​B. have my hair cut​C. cut my hair D. my hair be cut 4. Something funny ...........................in class yesterday ​A. happened​B. was happened​C. happens​D. is happened 5. Many US automobiles........................in Detroit, Michigan ​A. manufacture​B. have manufactured​C. are manufactured D. are manufacturing 6. A lot of pesticide residue can.........................................unwashed produce ​A. find​B. found​C. be finding​D. be found 7. We..................by a loud noise during the night ​A. woke up​B. are woken up​C. were woken up D. were waking up 8. Some film stars...................difficult to work with A. are said be​B. are said to be​C. say to be​D. said to be 9. Why did Tom keep making jokes about me? – I don’t enjoy........................at ​A. be laughed​B. to be laughed​C. laughing D. being laughed 10. Today, many serious childhood diseases...........................by early immunization ​A. are preventing​B. can prevent​C. prevent D. can be prevented 11. Do you get your heating..........................every year? ​A. checking​B. check​C. be checked​D. checked 12. Bicycles.......................in the driveway ​A. must not leave​B. must not be leaving​C. must not be left D. must not have left 13. Beethoven’s Fifth Symphony.......................next weekend ​A. is going to be performed B. has been performed C. will be performing D. will have perform 14. All bottles......................................before transportation ​A. frozen​B. were froze​C. were frozen​D. are froze 15. ...............................................yet? A. Have the letters been typed​B. Have been the letters typed ​C. Have the letters typed​D. Had the letters typed 16. English has become a second language in countries like India, Nigeria or Singapore where.................for administration, broadcasting and education ​A. is used​B. it is used​C. used​D. being used 17. The telephones..............by Alexander Graham Bell ​A. is invented​B. is inventing​C. invented​D. was invented 18. Lots of houses...................by the earthquake ​A. are destroying​B. destroyed​C. were destroyed​D. is destroyed 19. Gold.........................in California in the 19th century ​A. was discovered​B. has been discovered​C. was discover D. they discover 20. The preparation.......................by the time the guest............................ ​A. had been finished- arrived​B. have finished- arrived ​C. had finished-were arriving​D. have been finished- were arrived 21 The boy_____ by the teacher yesterday. A. punish B. punished C. punishing D. was punished 22. “Ms Jones, please type those letters before noon”_ “They’ve already ______, sir. They’re on your desk.” A. typed​B. been being typed ​C. being typed ​D. been typed 23. Sarah is wearing a blouse. It___________ of cotton. ​A. be made B. are made ​C. is made D. made 24. They had a boy _______ that yesterday. A. done ​B. to do C. did D. do 25. We got our mail ______ yesterday. A. been delivered B. delivered C. delivering D. to deliver ——————————————— Giúp e với ah. Cảm ơn mn nhìu

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team