cho tam giác abc nhọn và ab<ac .vẽ tia đối tia ab ,trên đó lấy điểm d sao cho ad =ac .vẽ tia đối tia ac ,lấy điểm e sao cho ae=ab.m và n lần lượt là trung điểm của cd và be .chứng minh . tam giác adm=acm, tam giác aen =abn

Chứng minh ( Chứng minh theo lí thuyết ) a. Nếu A ⊂ C và B ⊂ C thì (A ∪ B) ⊂ C b. Nếu A ∪ B = A ∩ B thì A=B c. Nếu A ⊂ B và A ⊂ C thì A ⊂ ( B ∩ C ) Mọi người giúp mình với ạ, mình đang cần gấp.

Tìm GTNN -x^2-2x+7 hhhhhhhhhhhhhhhhhhhhh

làm giúp mik í d bài hình nhé thank kiuu

Phân tích đa thức thành nhân tử: 2x-1-x^2

Giúp mik vs ạ cần gấp hứa cho ctlhn

Làm nguyên phần `b` Giải the lớp 6

vẽ đậu mầm hỏi trang trí thêm 3 quả dâu Nl: nhớ tôi hem

- Tinh thể hidrat là gì? Áp dụng vào dạng toán + cách làm? (Giúp em với ạ)

IV. SUPPLY THE CORRECT VERB 1. What time_________________ (be) the news on TV? 2. The police_______________ (arrest) the thief recently. 3. Physics___________ (be) more difficult than chemistry. 4. Ten tons of rice _______ (cost) a great deal of money. 5. The methods for studying the world _______ (have) been developed slowly through the work of many people. 6. Tom and I _________________ (be) cousin. 7. To love and to be loved _______________ (be) the greatest happiness on earth. 8. The production of dyes, perfumes_________________ (make) a lot of progress recently. 9. That you get very high grades in school ___ (be) necessary. 10. The professor and the student ___________(agree) on that point. 11. A large amount of money _______ (spend) on the film “Titanic”. 12. Washing dishes _________________ (be) the children’s job. 13. There _______ (be) some pens and books on Tim’s desk. 14. The old in my country ________ (be) cared for by their children. 15. Neither you nor I _______________ (be) wrong. 16. My father as well as his friends ______ (be) in the living room. 17. The house is empty. Nobody ______________ (live) there. 18. Either he or you _________________ (do) his work. 19. A number of students ____________ (go) to picnic today. 20. The number of days in a week ______________ (be) seven. 21. The boy and his dog _________________ (be) here now. 22. The boy with his dog _________________ (be) here now. 23. Mr Smith, accompanied by his wife and three children, _________________ (just, arrive) 24. All the equipment _________________ (be) made in Japan. 25. There _________________ (be) cattle in the field. 26. Measles ______(be) common among Vietnamese children. 27. Neither answer _________________ (be) correct. 28. One of my best friends ________ ( be) playing against me. Giúp mik vs Mình cần gấp ạ