1.Nghiệm phương trình sinx + 4cosx = 2 + sin2x là? 2.Phương trình √2 (sinx- 2cosx) = 2 -sin2x có hai họ nghiệm có dạng x = α + k2π; x = β + k2π ( 0 < hoặc=α,β < hoặc =π ) .Khi đó α.β Bằng?

27 đi ạ. Cảm ơn. Đáp án trong sách là A

Cali : Bé chanzzzzz vẫn cute nhất Nhanh nha

tính nhanh 32 x 8 + 28 x8 + 23

A verb the same meaning with hold _e_p Giúp mình với

Câu nào khó thì có thể bỏ qua ạ, ,nhưng ưu tiên lm hết

1. I want _______ (play) badminton with my friends after school. 2. Maria enjoys _______ ( do) crochet in her free time. 3. I would like ________ (go ) fishing on the weekends. 4. Do you like _________ (go) jogging? 5. What games do you like to _______ (play)? 6. My sister wants ________ (do) cross stitch. 7. Hung enjoys ___________ (listen) to music, and his brother love ___________ (watch) movie. 8. Tony suggested __________ (open) the window to get the fresh air. 9. We decided ______________ (buy) a new car. 10. I enjoy ____________ (write) picture postcards. 11. My parents wanted me __________ (be) home at 11 o’clock. 12. The children prefer ___________ ( watch) TV 13. Would you mind ____________ ( show ) me how to send an email? 14. Nam suggested ________ (talk) the children to school yesterday. 15. I’m interested in _________ ( learn) English 16. My teacher intends __________ (sing ) a song.

Em xin nhờ mọi người giúp em ạ , em xin chân thành cảm ơn mọi người nhiều lắm III. Choose the word or phrase that best fits the blank in each sentence: Indicate the word or phrase CLOSEST in a meaning to the underlined part in each of the following questions. 1. I was late for school this morning because my alarm clock didn’t go off. A. make noise​​B. wake me up​​C. produce a sound​D. move to another place 2. Henry was perfectly satisfied with his new fishing rod. A. unhappy​​B. contented​​C. relieved​​D. overjoyed The word that is OPPOSITE in meaning to the underlined part in each of the following questions: 1. She purchased a number of shares in the company. A. invested​​B. sold​​​C. spent money ​​D. bought 2. When he passes the entrance exam, his parents will be walking on air. A. extremely light​B. extremely happy C. feeling extremely unhappy​D. feeling extremely eager Choose the best answer: 1. These kinds of tiger are _______danger of extinction. A. at ​​​B. in ​​​C. on ​​​D. for 2. We arrived ______ the airport quite early. A. at ​​​B. in ​​​C. on ​​​D. for 3. Jack: “What’s wrong with you?” ​- Jill: “______.” A. Thank you very much ​​​B. I’m having a slight headache C. No, I don’t care ​​​​D. Yes, I was tired yesterday 4. Sarah: “Oh my God, I’ve missed my bus.” - Christ: “______. Another will come here in ten minutes.” A. I hope so ​​B. Don’t mention it ​C. Don’t worry ​D. Thank you 5. Mary: “Thanks a lot for your help.” - John: “______.” A. My excitement ​​B. My delight​​C. My happiness ​D. My pleasure 6. I know ____________ how she felt. A. exact​​​B. correct​​C. exactly​​D. proper 7. We _____________ the seedlings into peaty soil. A. take​​​B. plough​​C. raise​​D. transplant 8. These farmers get good food from their___________ lands. A. transplanting​​ B. pumping ​​C. leading​​D. productive 9. Drugs helped to ________ the pain. A. believe​​​B. receive​​C. relieve​​D. deceive 10. We should do something to protect the _______ animals. A. threatening ​​B. endangered ​C. extinction ​​D. disappointed 11. The next train ______________ at 7 p.m., so get ready now. A. leaves ​​​B. is leaving ​​C. will leave ​​D. has left 16. Mary _________ up and _______ her housework every early morning. A. Get / do​​ B. got / did​​ C. gets / do ​​ D. gets / does 17. All the rivers _________ to the sea. ​A. flow​​B. flows ​​C. flowed​​D. flowing 18. Water _____ at 100 Celsius degree. A. boil ​​B. boiled​​ C. boils​​ D. boiling 19. They ________________ to live in Australia in 1980. A. begin​​B. began​​C. begins​​D. are beginning 20. Columbus ________________ America more than 400 years ago. A. discover​​B. discovered​​C. has discovered​D. is discovering 21. It’s at least a month since I ______________ John. A. had seen ​​​B. have seen ​​C. last see ​​D. last saw 22. Don’t speak until someone ___________ you A. asked ​​​B. asks ​​C. will ask ​​D. have asked 23. Please send us a postcard as soon as you _______________ in London. A. will arrive​​​ B. is going to arrive ​C. arrive ​​D. arrived 24. She’ll be a billionaire by the time she __________ forty. A. is going to be ​​B. will be ​​C. is ​​​D. was 25. Mai: “Do you want another serving of chicken soup?” - Scott: “______.” A. No longer ​​B. No way ​​C. No comment ​D. No, thanks

làm 2 bảng trang 11 sách công nghệ 8

Giúp mình với 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏