7) 1/x+2 - 1/x-2 = 3x-12/x^2-4 8) 2/x-1 + 1/x+1 = 2x-1/x^2-1

S = 1 + 2 -3 - 4 + 5 + 6 - 7 - 8 + 9 + 10 -11 -12 + ....- 299 - 300 + 301 + 302 gấp nha mn

1. we(learn)....english everyday .2.Thuy often (have) ………………………..... lunch at home 3.They (listen) …….to muisic everyday?.............................................. 4. She ( not travel)…………………… to the hospital by bus 5. He ( sit) ..........................in the living room for coffee every morning

1 nêu 4 cuộc khởi nghĩa trong thời kì bắc thuộc và phân tích 1 cuộc khởi nghĩa có ảnh hưởng lớn đến tiến trình lịch sử của nước ta sau này ? 2 tình hình giáo dục đại việt tk x - XV có điểm tích cực và hạn chế của nền giáo dục nước ta trong giai đoạn này ?

hãy tìm 5 câu so sánh không ngang bằng

48. A. desert B. meter C. tent D. never 49. A. dozen B. box C. bottle D. body 50. A. farm B. bar C. tall D. car II. Choose the word whose main stressed syllable is placed differently from that of the other in each group. 1. A. pollute B. temple C. station D. palace 2. A. receipt B. backyard C. palace D. dislike 3. A. exciting B. terrible C. cathedral D. historic 4. A. organize B. zodiac C. serious D. fantastic 5. A. memorial B. convenient C. generous D. appearance 6. A. football B. compare C. ceiling D. table 7. A. cleaning B. duty C. beauty D. pollute 8. A. volunteer B. engineer C. benefit D. Vietnamese 9. A. tradition B. opera C. different D. capital 10. A. gallery B. dangerous C. referee D. personal 11. A. pleasure B. hurry C. arrive D. statue 12. A. decide B. railway C. temple D. palace 13. A. restaurant B. terrible C. gallery D. expensive 14. A. capital B. pagoda C. countryside D. motorbike 15. A. direction B. afternoon C. cathedral D. fantastic B. MULTIPLE CHOICE I. Choose the best answer to complete each of the following sentences. 1. No one else in the class plays the guitar_____John. A.as well B. as far as C. so well as D. as soon as 2. The town was nearer____we thought it would be. A. then B.that C. as D. than 3. The economic conditions today are ____ they were in the past. A. much more good B. much better than C. much better D. the best than 4. Jane is not_____her brother. A. more intelligent as B. intelligent as C. so intelligent as D. so intelligent that 5. He drives as____his father does. A. careful as B. more carefully C. the most careful D. carefully as 6. I’ll be there ____I can. A. sooner as B. no sooner as C. as soon as D. soonest as 7. Mr. Lam cannot earn _____his wife. A.as many money as B. as much money as C.as many money than D. as much money than 8. I like English _____French. A. than B. more C. less D. better than 9. My car is ____yours. A. more fast and economical than B. more fast and more economical than C. faster and economical as D. faster and more economical than 10. Of the two sisters, Linda_____. A. is beautiful B. the most beautiful C. is more beautiful D. is so beautiful as 11. Is there a theatre ____your neighbourhood? A. in B. on C. at D. with 12. _______the second turning the right. A. Take - in B. Take - on C. Get - in D. Get - on 13. _____nice the weather is! A. What B. How C. Which D. Who 14. The map ____that the art gallery is nearer than the cathedral. Shall we go there first? A. speaks B. asks C. says D. talks 15. A_____is a place where we go to buy stamps or send letters. A. library B.post office C. cinema D. school 16. The air in this area is______with smoke from factories. A. polluted B. fresh C. noisy D. clean 17. There are many shops near here, so the streets are very busy and ______during the day. A. noise B. narrow C. quiet D. noisy 18. It is______to live far from the market and the supermarket. A .easy B. inconvenient C. convenient D. comfortable 19. The people in Hoi An are incredibly _____and ________. A. friendly – help B. friendly – helpful C. friendship - helpless D. friend - helpfully 20. The weather is nice, so I enjoy doing _______activities. A. outdoor B. inside C. outdoors D. boring 21. The cinema is________the corner of the street. A. on B. in C. at D. into 22. Going by taxi is more_______than going by bus. A. cheaper B. faster C. easier D. expensive 23. The streets in the Old Quarter in Ha Noi are not wide. They are _______. A. exciting B. noisy C. narrow D. quiet 24. A_______is a place where we can buy medicines, soap, and make-up. A. chemist’s B. grocer’s C. square D. temple 25. David's exam results are________than Nick's. A. good B. well C. better D. important 26. Janet is not happy because her results in the competition are_____than her sister's. A. bad B. good C. better D. worse 27. _________people own motorbikes now than ten years ago. A. Many B. Much C. More D. Some 28. This type of car is economical than that type. A. more B. much C. many D. as 29. ________go past the traffic lights, and _____ turn left. A. First - than B. First - then C. Then - first D. Finally - then 30. London, the capital city of England, is a______city with many old buildings, and beautiful parks. A. history B. historic C. largest D. larger

Câu 17 khi bị nén 3cm một lò xo có thế năng đàn hồi bằng 0,18J độ cứng của lò xo bằng A 200N/m B 300N/m C 400N/m D 500N/m

Làm được hãy làm nhé ạ mình cần kết quả đúng nhất đừng làm bừa ạ

Tiìm số nguyên dương n nhỏ nhất sao cho tồn tại đúng ba số nguyên dương nằm giữa các phân số 84+n/16+n và 84/16

Làm chi tiết và vẽ hình ra dùm mình nha.Huhu kiểm tra mà hk biết làm.Mong các bạn và anh chị giúp mình nha 🥰🥰🥰🥰🥰 2 câu luôn huhu