user-avatar
toanzca54321
2 năm trước
Giải các pt sau: a,(cos x-1)(2cosx-1)/sinx =1-sin 2x +2cos ²x b, cos (2x+ π/3)+ √3 cosx -sin x-3=0
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

38: She learns ................. to use a computer in Computer Science class. A. how B. what C. which D. who 39: Who is the .................. of "Truyen Kieu" ? - It’s Nguyen Du. A. teacher B. student C. author D. journalist. 40: Dryer, washing machine and .............. are household appliances. A. table B. fridge C. chair D. couch. 41. They ______ table tennis when their father comes back home. A. will play B. will be playing C. play D. would play 42. By Christmas, I _______ for Mr. Smith for six years. A. will have been working B. will work C. have been working D. will be working 43. I _______ in the room right now. A. am being B. was being C. have been being D. am 44. I ______ to New York three times this year. A. have been B. was C. were D. had been 45. I'll come and see you before I _______ for the States. A. leave B. will leave C. have left D. shall leave 46. The little girl asked what _______ to her friend. A. has happened B. happened C. had happened D. would have been happened 47. John ______ a book when I saw him. A. is reading B. read C. was reading D. reading 48. He said he _______ return later. A. will B. would C. can D. would be 49. Jack ________ the door. A. has just opened B. open C. have opened D. opening 50. I have been waiting for you ______. A. since early morning B. since 9 a. m C. for two hours D. All are correct

31. The company is laying ____________ a lot of money on building a new creation complex. 32. They have a lot of financial problems, but at last, they carry it ______________. 33. Harley managed to put __________ her point of view very successfully in the meeting. 34. You shouldn’t take ____________ more than you can handle, otherwise you’ll suffer from stress. 35. Linsey talks so much, she could talk the hind leg ______________ a donkey. 36. It's _____________ time you told him the truth! 37. If you get goods _____________the cheap, you get them for a low price, often from someone you know who works in the company or business that produces them. 38. He accidentally dropped his keys _________ a drain in the road. 39. The President has said that the government is committed _______________ the preservation of the country’s national interests. 40. The authorities are thinking of bringing _______________ a law to make it compulsory for cyclists to wear crash helmets. giúp em nhanh với ạ em cảm ơnnnn

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