Giúp mình mấy câu còn thiếu vs ạ
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3.
Từ BBT ta thấy hàm đồng biến trên các khoảng \(\left(-\infty;-1\right)\) và \(\left(1;+\infty\right)\)
B đúng
4.
Từ BBT ta thấy hàm đồng biến trên các khoảng \(\left(-\infty;-1\right)\) và \(\left(0;1\right)\)
A đúng
1.
B sai (thiếu điều kiện \(f'\left(x\right)=0\) tại hữu hạn điểm)
42 Because of the snow, we stayed at home
43 đúng r
44 Is this the cheapest shirt you have?
45 How nice the weather is!
1 The girls really like rehearsing a play with friends
2 My younger brother prefers reading books to playing outdoor games
3 The harvest time occured earlier than we had thought
4 Children in the countryside knw about technology less cleary than children in big cities
My younger brother adores watching historical films
Em ơi khi đăng bài em đăng 1-2 bài cho một lượt hỏi thui nha!
21. Tinh told Lien that she might go shopping with her friends
22. Bao said he had to do more grammar exercise
23. The girl said they ought to finish their homework that night
24. The leader of the group said that they would play with their best to win the prize for their school
26. The coach told the players to train harder for the next match
27. Tam's sister told him to help her to clean the house
28. Hoa's parents said that they would visit her that summer
30. Mary told her friend that she would expect to see him/her the next Wednesday