user-avatar
Eghmnk
2 năm trước
Cho đường thẳng (d): y=(m-2)x+3 (m khác 2) và đường thẳng (d'): y=-(m²)x+1 (m khác 0) a) tìm m để (d)//(d') b) Tìm m để d cắt Ox tại A, cắt Oy tại B mà ∠BAO=60
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. We can’t go along here because the road…………………… A. is repairing B. is repaired C. is being repaired D. repairs 2. The story ……………….Agatha Christie. A. was written B. was written by C. was written from D. wrote by 3. Something funny ………………………in class yesterday. A. happened B. was happened C. happens D. is happened 4. Many US automobiles……………………in Detroit, Michigan. A. manufacture B. have manufactured C. are manufactured D. are manufacturing 5. A lot of pesticide residue can…………………………………..unwashed produce. A. find B. found C. be finding D. be found 6. We………………by a loud noise during the night. A. woke up B. are woken up C. were woken up D. were waking up 7. Today, many serious childhood diseases………………………by early immunization. A. are preventing B. can prevent C. prevent D. can be prevented 8. Bicycles…………………..in the driveway. A. must not leave B. must not be leaving C. must not be left D. must not have left 9. Beethoven’s Fifth Symphony…………………..next weekend. A. is going to be performed B. has been performed C. will be performing D. will have perform 10. All bottles………………………………..before transportation. A. frozen B. were froze C. were frozen D. are froze 11. The telephones…………..by Alexander Graham Bell. A. is invented B. is inventing C. invented D. was invented 12. Lots of houses……………….by the earthquake. A. are destroying B. destroyed C. were destroyed D. is destroyed 13. Gold…………………….in California in the 19th century. A. was discovered B. has been discovered C. was discover D. they discover 14. The preparation…………………..by the time the guest………………………. A. had been finished- arrived B. have finished- arrived C. had finished-were arriving D. have been finished- were arrived 15. The boy…………………….by the teacher yesterday. A. punish B. punished C. punishing D. was punished 16. “Ms Jones, please type those letters before noon”_ “They’ve already………………, sir. They’re on your desk.” A. typed B. been being typed C. being typed D. been typed 17. Sarah is wearing a blouse. It………………….of cotton. A. be made B. are made C. is made D. made

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team