Tìm m để hàm số sau đồng biến trên R: $mx^{3}$ - (2m-1)$x^{2}$ + 4m - 1

giup mk voi a!!! tuy nhieu nhung viet ra vo cx dc! 1. I’m sorry now that I can’t tell her about this.  Now I wish . . . . . . . . . . . . . . . . . . . . . . . . . 2. She won’t visit me again. I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. I’m sorry that he isn’t with us now. I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. I’m sorry that I can’t finish my homework .  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. What a pity! You have to leave now. I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. John can’t join in the trip as he promised. I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. My father can’t speak English fluently I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8. She is sorry that she doesn’t take part in cooking class.  She wishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9. I’m afraid that we don’t have enough money to buy that little house.  We wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10. Maria will not be able to join our trip tomorrow  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11. What a pity Mary doesn’t understand me  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . 12. I ‘m sorry . I can’t see you off at the airport  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13. I regret going out alone at the night.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14. It’s a pity my teacher isn’t here to give us some advice. I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15. There are a lot of lessons and homework.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16. Mrs Taylor would like to be on the beach now  Mrs Taylors wishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17. He is sad because he doesn’t have a new bike  He wishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18. It’s a pity I don’t take my doctor’s advice.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19. I’m afraid that I don’t have time to listen to you.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20. I’m sorry that I can’t help you with this.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21. He doesn’t like living in such a small house  He wishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22. What a pity the weather isn’t fine today.  I wish........................................................ 23. I haven’t enough money to buy this book.  If only...................................................... 24. I’m afraid he won’t get over his illness soon.  I wish...................................................... 25. I live in a big city, but I don’t like it.  I wish...................................................... 26. I can’t take the trip to Hanoi with her next summer.  I wish...................................................... 27. Mary is afraid she won’t be able to attend your wedding next week.  I wish...................................................... 28. I will have to leave here tomorrow.-> 29. It won’t rain tomorrow. 30. They will build a factory here so the air in the city will be polluted. -> If only they…………………………………………………………………………. 31. It’s a pity, my parents won’t visit HL bay with us next week ->If only………………………………………………… 32. I regret that you weren’t here yesterday.  I wish . . . . . . . . . . . . 33. If only I didn’t get such bad marks.  I WISH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34. We had to cancel the match.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35. I regret not going to airport to say goodbye her.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36. She is sorry that she told you the best news.  She wishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37. I’m sorry that I didn’t finish my homework last night.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38. What a pity! You failed your driving test.  I wish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39. I’m sorry now that I asked her to say.  Now I wish . . . . . . . . . . . . . . .

1. Viết các biểu thức sau dưới dạng lập phương của một tổng hay một hiệu: (x + y)^3 . (x – y)^3

cho biểu thức A=x+căn x/cănx -2 + 2 căn x -1 / căn x +2 + x-6 căn x +4 / x-4 a) rút gọn

1 xưởng gỗ cần 120 người làm xong trong 20 ngày,nếu có thêm 20 người nữa thì làm xong trong bao nhiêu ngày

lam dum minh phan word form vs a

giúp mình với mai mình học rồi T_T làm bài nào cũng được ạ

Từ 2 lít N2 có thể điều chế được bao nhiêu lít NH3? Biết hiệu suất phản ứng đạt 70%.

`-5/7 . 2/11 - 5/11 . 9/7 + 2 5/7` Tính nhanh Lâu rồi ko học nên quên mất

trục căn thức ở mẫu : a) (1+√a)/(1-√a) với a≥0 và a≠1 b) (a-2√a)/(2-√a) với a≥0 và a≠4 c) a/(3√a -1) với a≥0 và a≠1/9