60 điểm đấy các bạn ạ! cố lên làm hết 5/6 bài bất kỳ nhé

Tại sao đạo hàm của logarit tự nhiên của x bằng 1 phần x

giúp mik vs ạ mình đang cần gấp ạ

Vẽ hai đường thẳng cắt nhau sao cho trong các góc tạo thành có một góc bằng 150đô tính số đo còn lại

tìm x `1/2.4 + 1/4.6 +...+1/((2x-2).2x) = 1/8`(x thuộc N và x lơn hơn hoạc = 2)

Chuyển các câu hỏi dạng đảo Có/Không sang câu bị động 26. Do they teach English here? 27. Will you invite her to your wedding party? 28. Has Tom finished the work? 29. Did the teacher give some exercises? 30. Have they changed the window of the laboratory? 31. Is she going to write a poem? 32. Is she making big cakes for the party? 33. Are the police making inquires about the thief? 34. Must we finish the test before ten? 35. Will buses bring the children home?

V. Chuyển các câu với động từ tường thuật sau sang câu bị động 54. They think that he has died a natural death. 55. Some people believe that 13 is an unlucky number. 56. They say that John is the brightest student in class. 57. They reported that the President had suffered a heart attack. 58. I knew that they had told him of the meeting. 59. They declared that she won the competition. 60. They rumored the man was still living. 61. People think that Jack London’s life and writing’s represent the American love of adventure. 62. They reported that the troops were coming. 63. People believed that the earth stood still.

Phân tích các đa thức sau thành nhân tử chung bằng cách dùng hằng đẳng thức: a, 10x ( x - y) -8y (y -x) b, 2x (x + 3) + 2 (x + 3) c, 4x ( x - 2y) + 8y (2y - x) d, ( x + y) ³ - x ³ - y ³ e, y ² ( x ² + y) - zx ² - zy f, 1/2x ( x ² - 4) + 4 ( x + 2) g, 4x ³y - 9xy

I. Chuyển các câu sau sang câu bị động 1. Mary types letters in the office. 2. His father will help you tomorrow. 3. Science and technology have completely changed human life. 4. Peter broke this bottle. 5. They are learning English in the room. 6. Nothing can change my mind. 7. No one had told me about it. 8. I don’t know her telephone number 9. My students will bring the children home. 10. They sent me a present last week. 11. She gave us more information. 12. The chief engineer was instructing all the workers of the plan. 13. They can’t make tea with cold water. 14. Somebody has taken some of my books away. 15. They will hold the meeting before May Day. 16. They have to repair the engine of the car. 17. The boys broke the window and took away some pictures. 18. People spend a lot of money on advertising every day. 19. Teacher is going to tell a story. 20. Mary is cutting a cake with a sharp knife. 21. The children looked at the woman with a red hat. 22. They have provided the victims with food and clothing. 23. People speak English in almost every corner of the world. 24. You mustn’t use this machine after 5:30 p.m. 25. After class, one of the students always erases the chalk board

Vẽ cho mình Doraemon đang ngồi và nhu mỏ nha. Luật vẽ của mình: 1 sao: không làm đúng yêu cầu đề bài 2 sao: vẽ xấu mà không tô màu 3 sao: vẽ xấu mà tô màu 4 sao: vẽ đẹp mà không tô màu 5 sao: vẽ đẹp tô màu Cảm ơn: cân đối hoàn chỉnh bức tranh Hihi ai không vẽ được thì thôi không được vẽ nhỏ, phải được 1 trang giấy học sinh.