Cho (O;R) và 1 điểm A nằm ngoài (O). Từ điểm M chuyển động trên đường thẳng d vuông góc với OA tại A. Vẽ các tiếp tuyến MP,MK với (O), dây PK cắt OM tại N, cắt OA tại B a chứng minh 4 điểm O,P,M,K cùng thuộc 1 đường tròn b chứng minh PK vuông góc với OM c chứng minh OA.OB=Om.ON=R^2

viết sơ đồ tư duy tóm tắt chuong 3 góc vs đường tròn toán 9 (phải vẽ sơ đồ )và chụp rõ nhé

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giup minh voi.hua se tim+5sao+tnhl

Giúp mik với hứa cho 5 sao và ctlhn Bài tập 4: Dựa vào lược đồ H.41, trang 88.Trình bày kế hoạch tiến quân ra Bắc của Lê Lợi theo các nội dung đã ghi trong bảng sau:Nhiệm vụ của từng đạo quân Nhiệm vụ của cả ba đạo quân: Đạothứnhất......................................................................................................................................................................................................... Đạo thứ hai- .................................................................------------------------------------------------------------------------------------------------------ Đạo thứ ba- ------------------------------------------------------------------------------------------------------------------------------------------------------ Bài tập 5: Điền vào khung trống về tổ chức quân đội thời Lê sơ: • Hại bộ phận chính của quân đội là:------------------------------------------ ---------------------- • Các binh chủng trong quân đội gồm có :-------------------- ------------------------------ ------ • Quân đội được tổ chức theo chế độ-------------------------------------- Bài tập 6: Viết vào chỗ trống những thành tựu về khoa học thời Lê sơ. • Sử học:----------------------------------------------------------------------------------------------------- • Địa lí học : ------------------------------------------------------------------------------------------------- • Y học: ----------------------------------------------------------------------------- • Toán học :------------------------------------------------------------------------------------------------

Exercise 3. Cho dạng đúng của động từ trong ngoặc với câu điều kiện loại 3. 1. If the weather (be) nice, they (play) football. 2. If we (go) to a good restaurant, we (have) a better dinner. 3. If An (learn) more words, he (write) a good report. 4. If the boys (take) the bus to school, they (arrive) on time. 5. If the teacher (explain) the homework, I (do) it. 6. If they (wait) for another 10 minutes, they (see) the pop star. 7. If the police (come) earlier, they (arrest) the burglar. 8. If you (buy) fresh green vegetable, your salad (taste) better. 9. If Alex (ask) me, I (email) the documents. 10. If he (speak) more slowly, Peggy (understand) him. 11. If Mary (wear)…………a raincoat, she would not have got a cold. 12. There (not have)….....…an accident if the driver in front hadn’t stopped so suddenly. 13. If she had eaten something, she (not feel)………………………. hungry. 14. If I (have)………………a sound sleep last night, I would have been well. 15. If it (not rain)…………yesterday, we would have had lunch in t he garden. 16. If it had not been very expensive, I (buy)…………………………..it. 17. If the teacher (speak)…………more slowly, Peter would have understood the lessons. 18. If I ........ (have) my camera with me yesterday, I ............... (take) a picture of Alex standing on his head. 19. The cowboy pulled his gun to shoot at the rattlesnake, but he was too late. If he ...............(be) quicker to pull the trigger, the snake .......... (not-bite) him on the foot. 20. If you ......................... (be) more careful, you wouldn't have cut yourself. Exercise 4. Cho dạng đúng của động từ trong ngoặc. 1. If we meet at 9:30, we (have) plenty of time. 2. Lisa would find the milk if she (look) in the fridge. 3. The zookeeper would have punished her with a fine if she (feed) the animals. 4. If you spoke louder, your classmates (understand) you. 5. Dan (arrive) safe if he drove slowly. 6. You (have) no trouble at school if you had done your homework. 7. If you (swim) in this lake, you’ll shiver from cold. 8. The door will unlock if you (press) the green button. 9. If Mel (ask) her teacher, he’d have answered her questions. 10. I (call) the office if I (be) you. 11. If they (listen) carefully, they might hear the woodpecker. 12. If I had lain down on the sofa, I (fall) asleep. 13. Ngoc could have worked as a model if she (be) taller. 14. The soil (not/dry out) if you water the plants regularly. 15. If you (give) the young boy this stick, he’d hurt himself. 16. We (not/take) the wrong tram if Dzung had asked the policewoman. 17. If the cat hides in the tree, the dog (not/find) it. 18. The students would have solved the problem if they (use) their textbooks. 19. If he washed his feet more often, his girlfriend (visit) him more often. 20. Manh (read) the newspaper if he went by train.

Exercise 1. Cho dạng đúng của động từ trong ngoặc với câu điều kiện loại 1. 1. If I (study), I (pass) the exams. 2. If the sun (shine), we (walk) into town. 3. If he (have) a temperature, he (see) the doctor. 4. If my friends (come), I (be) very happy. 5. If she (earn) a lot of money, she (fly) to New York. 6. If we (travel) to Hanoi, we (visit) the museums. 7. If you (wear) sandals in the mountains, you (slip) on the rocks. 8. If Giang (forget) her homework, the teacher (give) her a low mark. 9. If they (go) to the disco, they (listen) to loud music. 10. If you (wait) a minute, I (ask) my parents. 11. David will leave for Ren tomorrow if the weather .......................... (be) fine. 12. What will you do if you ............................ (not / go) away for the weekend ? 13. The game .......................................... (start) if you put a coin in the slot 14. If you ................................... (be) scared of spiders, don’t go into the garden. 15. We’ll have to go without John if he ( not arrive)…………….soon. 16. Please don’t disturb him if he ...................................... (be) busy. 17. If she ........... (accept) your card and roses, things will be very much hopeful. 18. If a holiday .................................... (fall) on a weekend, go to the beach. 19. If she (come)…………………………. late again, she’ll lose her job. 20. If he (wash)…………………………..my car, I’ll give him $20. Exercise 2. Cho dạng đúng của động từ trong ngoặc với câu điều kiện loại 2. 1. If I (come) home earlier, I (prepare) dinner. 2. If we (live) in HCMC, my boyfriend (visit) us. 3. If Tung and Thanh (be) older, they (play) in our football team. 4. If he (be) my friend, I (invite) him to my birthday party. 5. If Xuan (study) harder, she (be) better at school. 6. If they (have) enough money, they (buy) a new car. 7. If you (do) a paper round, you (earn) a little extra money. 8. If Minh (get) more pocket money, he (ask) Lam out for dinner. 9. If we (win) the lottery, we (fly) to London. 10. If I (meet) Brad Pitt, I (ask) for his autograph. 11. If I knew his address, I (write)............. to him. 12. If the sun (be)................ shining now, we would go to the beach 13. If you (paint)…………….the walls white, the room would be much brighter. 14. If he knew that it was dangerous, he (not come)………………………. 15. I (buy)…………………..shares in that company if I had some money. 16. If you drove more carefully, you (not have)………….. so many accidents. 17. If I (be)……….. you , I (not worry)………...............about going to university. 18. If I (have)…………………any money, I would give you some. 19. Mary doesn’t study hard. She (not pass)……… the examination unless she worked harder. 20. The man would go abroad if he (can speak)…………… Japanese.

Mn giúp mình với. Mình cảm ơn nhìu!

Giúp mình với mọi người cần gấp : Give the correct form of the folowing ver 1.I______________ (go) to school by bicyecle every day. 2.When I (come)______________ home from work ,my mothe was cooking dinner. 3.The children (play)______________ football at the moment. 4.If you (study)______________ hardet,you will pass the exam. 5.I wish he (not leave)______________ here. 6.He (live)______________ in Asustralia for 10 years. 7.Ba enjoys (play)______________ football in the morning. 8 .My house (build)______________ in 2004. 9.If the weather gét worse ,we (not go)______________ to the beach. 10.I wish i (live)______________ near my school.

I am interested in your plan. => I frond _______________________.