"Please, clean the windows carefully", Tan said to Bao.

Cho hình thang cân ABCD (AB//CD) biết AB=26cm,AD=10cm và đường chéo AC vuông góc với cạnh bên BC. Tính diện tích hình thang ABCD

Câu 1: Tập xác định của hàm số y=1sinx − cosxy=1sinx - cosx là A. x≠ kπ B. x≠k2πx C. x≠π2+kπx D. x≠π4+kπ Câu 2: Tập xác định của hàm số y = 1−3cosxsinxy = 1-3cosxsinx là A. x≠π2+kπ B. x≠k2π C. x≠kπ2 D. x≠kπ Câu 3: Tập xác định của hàm số y = cos √xy = cos x là A. x > 0 B. x≥0 C. R D. x≠0

.II. Supply the correct word forms: 1. It’s hard to find ________ in the summer. (ACCOMMODATE) 2. He has a large _________ of stamps. (COLLECT) 3. He made an unfavorable _________ between food in his country and mine. (COMPARE) 4. They made a _________ about the heating. (COMPLAIN) 5. I had to write a ___________ for homework. (COMPOSE) 6. She gave a ______________ of the new computer. (DEMONSTRATE) 7. I had ________ starting my car this morning. (DIFICULT) 8. Have you got some kind of ____________ on you? (IDENTIFY) 9. How serious is her ___________? (ILL) 10. They had a very happy ___________. (MARRY) 11. There was a strange _________ in the bowl. (MIX) 12. Gardening is a relaxing ___________ for some people, but not for me! 13. Could I have _________ to go home early? (PERMIT) 4. There are several _________ mistakes in this letter. (PUNCTUATE) 15. I have made a __________ for next weekend. (RESERVE) 16. He made a ________ about the robbery. (STATE) 17. He made another __________ about who to invite. (SUGGEST) 18. Can I get a __________ of this book? (TRANSLATE) 19. He’s having ________ for his bad back. (TREAT) 20. I’ve put on _____________ since I arrived here. (WEIGH) 21. He’s so ________! No wonder he has no friends! (AGREE) 22. We must meet soon, ____________ before Saturday.(PREFER) 23. The earthquake caused _________ damage. (EXTEND) 24. The roads were __________ because of the snow. (PASS) 25. This place has changed beyond ____________.(RECOGNIZE) 26. She took the job to be ___________ independent. (FINANCE) 27. He died under ______________ circumstances. (SUSPECT) 28. We can look forward to a period of _________ (PROSPER) 29. I’m afraid I rather __________ agreed to help. (WISE) 30. They were caught in an _______ shower of rain. (EXPECT) 31. I’m afraid I rather __________ agreed to help. (WISE) 32. She spent hours getting the house ___________ clean. (SPOT) 33. If I were you, I wouldn’t make a _________ just yet. (DECISION) 34. It’s _____________ of motorists to drink and drive. (RESPONSE) 35. If you have any special ________, please let me know. (REQUIRE) 36. I don’t mind ____________ criticism but there’s no need to be unpleasant. (CONSRUCT) 37. If you’re not too busy, I could do with some _____________ (ASSIST) 38. I had my trousers _________ because they were too short. (LONG) 39. If you lose your check book, you should _______ the bank without delay. (NOTE) 40. It was a ________ letter addressed to the boss and the secretary shouldn’t have opened it. (CONFIDE) 41. The ________ of the flight was delayed so we had to spend the night at the airport. (DEPART) 42. The teacher warned the children that if they _________ again, they’d be punished. (BEHAVE) 43. It’s ________ to study a language if you’re never going to use it. (POINT) 44. I’m afraid I’m in the _________ position of being out of work and heavily in debt. (ENVY) 45. Great works of art like the Mona Lisa are _________. (PRICE) 46. I’m afraid you’ve ________ me because that’s not what I meant. (UNDERSTAND) 47. Why do we always end up by having an ______? (ARGUE) 48. I’ve been a ___________ since I had a hear attack. (SMOKE) 49. Unless you _______ I won’t forgive you. (APOLOGY) 50. I wish you’d be ___________ instead of telling me lies. (TRUE)

digi là j Tradi là j thấy mấy bn toàn dùng mấy cái này mk ko hiểu j hết trơn

Tìm GTNN của : $C = |x-6|+|x-10|+|x-2022|+|y-2019|$

Hai xe cùng xuất phát từ A để về B. Xe thứ nhất đi nửa quãng đường đầu với vận tốc v1=40km/h, nửa quãng đường còn lại vận tốc của xe là v2=60km/h. Xe thứ hai đi trong nửa thời gian đầu với vận tốc v1 nửa thời gian còn lại với vận tốc v2. a/vận tốc trung bình hai xe b/ Xe nào về đến B trước?

Tìm GTNN của : $A= $ $║x - 2019 ║+ ║ x - 2018 ║+ 2017$ P/s : ║ là dấu gttđ

giải pt: $\sqrt[]{-x^{2}+3x-2}$ . $sin[\pi(16x^{2}+2x)]$ = 0

"Can you give me the book on the desk, Lan?", Ba said.