user-avatar
gianmacdinh
2 năm trước
cho các số thực thỏa `\sum a=2013` Chứng minh rằng `\sum \frac{a}{a+\sqrt{2013a+bc}}<=1`
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Ai giúp mình 10 câu này vs ạ ko cần giải thích. 20.Which of the following sentence is the COMMANDS?  A. You should buy a textbook. B. I suggest making appointment with the QC team today. C. Come back home after finishing your class. D. Why don’t you go to the park? 21. __________the researcher’s report, eating fresh fruits and vegetables more often is a better health goal than advoiding fast food. A. Rather than B. According to C. Even though D. Because of 22. Joggers are asked to keep to the right side of the path, __________ many cyclists will need space to pass on the left. A. as B. so C. yet D. but 23. The dining room furniture was left intentionally in the house ___________ the new owner bought it. A. So that B. because D. because of D. thus 24. The building owner purchased the properly just two months ago, __________ she has already spent a great deal of money on renovations. A. For B. then C. but D. thus 25. ______________________, Jonathan stays in bed and reads magazines. A. Whenever raining B. When it will rain C. As it will be raining D. Whenever it rains 26. ______________________out of her house, she was kidnapped. A. No sooner had the girl got B. No sooner the girl had got C. No sooner the girl got D. Had the girl no sooner got 27. ______________you finish typing that report make five copies of it and give it to aloof the officers. A. Until B. When C. But D. Although 28. Hardly had she gone into the bank ____________ one of the robbers attacked him. A. when B. than C. as C. and 29. __________you are interested, please visit our website at www. SJC. SGcompany.com for more information. A. Thus B. Yet C. As D. If 30. A minor electrical malfunction was discovered by the pilot shortly __________ the plane took off. * A. after B. before C. until D. so that

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