user-avatar
hoangha123hahoa
2 năm trước
cho a,b là các số thực không âm thoả mãn a 2018 + b 2018 = a 2020 + b 2020 . tìm giá trị lớn nhất của biểu thức P= ( a + 1 ) 2 + ( b + 1 ) 2
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

11. Much progress ____ been made in recent years. A. have B. has C. having D. to have 12. Collecting old coins and paper notes ____ one of my hobbies. A. being B. were C. are D. is 13. The number of pupils getting poor marks since the beginning of the semester ____ appalling. A. to be B. have been C. are D. is 14. Five thousand pounds ____ stolen in the robbery last night. A. being B. were C. are D. was 15. Mr. Thomson with his wife and his three children ____ abroad. A. to be B. have been C. are D. is 16. One of the girls who ____ working in this department ____ my niece. A. is/being B. are/is C. is/are D. was/were 17. The English ____ to drink tea. A. likes B. to like C. like D. has liked 18. Everybody ____ trying to do their best at present. A. to be B. have been C. are D. is 19. Jim as well as I ____ always busy doing English homework. A. am B. has been C. are D. is 20. Neither Daisy nor I ____ glad to do that. A. am B. has been C. are D. is 21. That you take a computer course ____ very necessary. A. am B. have been C. are D. is 22. The police ____ come to the site of the accident. A. have B. has C. having D. to have 23. The pilot along with his passengers ____ rescued last night. A. am B. have been C. was D. is 24. What we need most ____ books. A. is B. were C. are D. to be 25. My brother together with his friends often ____ in the park. A. jogs B. jogging C. jog D. to jog 26. Neither he nor they ____ here yesterday. A. are B. were C. is D. be 27. Either John or his children ____ breakfast each morning. A. make B. makes C. making D. to make 28. I don’t like the hot weather. Thirty degrees ____ too warm for me. A. was B. are C. being D. is 29. Not only a dog but also two cats ____ at home in his garage. A. was B. are C. been D. is 30. Both a poem and a short story ____ been written by the young author. A. has B. to have C. have D. having

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