Cho đường tròn (O; R) và điểm I cố định khác O. Một điểm M thay đổi trên đường tròn. Tia phân giác của góc MOI cắt IM tại N. Tìm quỹ tích điểm N.

Giải PT sau theo 3 cách: $x^{2}$ -2x+4=4 $\sqrt{x-1}$ Cách 1: Nâng lên lũy thừa Cách 2: Nhân liên hợp Cách 3: Phân tích thành A^2 + B^2 + … = 0

Question 1: For each question, write the che correct answer Write ONE world for each gap Dear Class 9, Next week, we are going to do something different in our English lesson. I want pupils to stand up, and speak to the whole class for one minute about a sport they like doing. It will be an excellent way(1)............. practise your English. If you(2)........... like to do this, please(3)............. me know

Làm hộ mình câu 10 với ạ mình cần rất gấp

cho mình hỏi: cho đoạn thẳng BC có K nằm giữa BC sao cho vecto KB = -1/3 vecto KC ------> vecto KB = bao nhiêu vecto BC

Bài 1: Tìm các danh từ có trong đoạn văn sau: Trong những năm đi đánh giặc, nỗi nhớ đất đai, nhà cửa, ruộng vườn ,thỉnh thoảng lại cháy lên trong lòng anh. Đó là những buổi trưa Trường Sơn vắng lặng, bỗng vang lên một tiếng gà gáy, những buổi hành quân bất chợt gặp một đàn bò rừng nhởn nhơ gặm cỏ. Những lúc ấy lòng anh lại cồn cào, xao xuyến. (Nguyễn Khải – Tình quê hương) Bài 2: Tìm và ghi lại 6 danh từ chỉ khái niệm trong 4 câu văn sau : a. Âm mưu của bọn cướp đã bị phá tan. b. Hình ảnh mẹ luôn ở trong tâm trí em. c. Lòng em tràn ngập niềm hạnh phúc. d.Chúng ta phải vượt qua mọi khó khăn.

3. “Is the weather good in Shanghai in the summer?” Jane asked me. 4. “What are the skills that you find the most difficult to learn?” she asked me. 5. I don’t know where I should visit this summer vacation. (with TO INFINITIVE) 6. Could you tell me who I should ask for advice? (with TO INFINITIVE)

X. Use the word to build the sentence. 1. I/ give/ you/ something/ relieve/ pain __________________________________________________________________________ 2. You/ shouldn’t/ eat/ too/ many/ oily food/ chips __________________________________________________________________________ 3. If/ you/ put on/ weight/ quickly, you/ eat/ less/ eat/ healthily __________________________________________________________________________ 4. Play/ sports/ after work/ help/ you/ relax better. __________________________________________________________________________ 5. it/ be/ essential/ regular exercise/ and eat/ healthily. __________________________________________________________________________ XI. Write full sentences using the suggested words and phrases given. 1. We / keep / body healthy /eating properly /exercising regularly/. __________________________________________________________________________ 2. There/ many types/exercises/ we may participate /. __________________________________________________________________________ 3. Smoking / dangerous diseases such/ heart disease/ lung cancer. __________________________________________________________________________ 4. I’m /busy/ Friday,/ I / visit you/ Saturday afternoon. __________________________________________________________________________ 5. Having / meal/ day/ good, so you / eat three meals/ day: breakfast, lunch,/ dinner. __________________________________________________________________________ 6. We/ avoid/ diseases/ having balanced meals. __________________________________________________________________________ 7. I/ try/ avoid foods high/ fat like fries/ cookies __________________________________________________________________________ 8. I/ eat/ of vegetables fresh fruit/ full/ fiber/ vitamins __________________________________________________________________________ 9. Nick/ wash/ hands a lot/ he/ not/ have/ the flu __________________________________________________________________________ 10. Eating/ fresh fish/ make/ you smarter _____________________________________________________________________________ XVII. Sentence correction: Can you rewrite the following sentences in correct English? 1. Laughing is good with health. 2. Some people have a very bad habit in littering in public. 3. In prevent flu, we should keep our hands clean, our feet warm. 4. She has a sore throat yesterday. 5. People who live in a dusty area often suffer on diseases. 6. It is important to keep our body health. 7. You yawnbecause your lung need more oxygen. 8. People who smiles more are happier, and they live longer. 9. Do you know that orange offer more health benefits than Vitamin C pills? 10. We had waited since a while at the clinic before I got to see the doctor. 11. I’ve drunk three glasses of beer, but I’ve got a headache. 12. Nam is my classmates. He watches TV every night. 13. I think collecting stamps are interesting. 14. Watch more television; if not, your eyes will be tired. 15. Eating lots of fast food can make you fat or obesity. XIX. Supply the correct form of the words 1. I eat ________________, exercise regularly, and keep up my social life. (HEALTH) 3. It s such a ______________________day! Will we visit our grandparents? (BEAUTY) 4. Ask your doctor for tips or _____________________to help you stop smoking (TREAT) 5. Relax in our ________________chairs and enjoy our excellent tea and hot chocolaté (COMFORT) 6. Be ____________with what you eat and drink. (CARE) 7. If you have ___________________, it is best to seek immediate advice from a dentist. (TEETH) 8. Time passes _________________when you are alone. (SLOW) 9. Is she _____________ enough to run one kilometer? (GOOD) 10. That’s a bad ____________. Why don’t you have a glass of water? (COUGHING) 11. Drinking unclean water can cause __________________. (sick) 12. I find woodcarving _____________________because it's a creative activity. (interest) 13. I think collecting glass bottles is (usual) _____________________. 14. Susan is very _____________sand she paints very well. (create) 15. Today Lien is _____________ because she misses her parents. (happy) 16. I like cats but unfortunately I'm __________________________ to them. (ALLERGY) 18. This book requires a great deal of ____________________ (CONCENTRATE minh dang can gap

vui quá có trong danh sánh kết quả đua top :) vẽ anime vui

Tính tổng: 1/1+(-2)+3+(-4)+...+19+(-20) 2/1-2+3-4+...+99-100 3/2-4+6-8+...+48-50