Phân tích Đa thức thành nhân tử x^3+1

4. I have never read a better book about cultural diversity than I have ever read. A. This book is a good book about cultural diversity I have ever read. B. This is the best book about cultural diversity I have ever read. C. This book is as good as the one about cultural diversity I have ever read. D. The book about cultural diversity I have ever read isn’t better than this one dạng câu gì giải thích rõ nhé nhanh nhanh nhá

Cho ∆ABC vuông tại A a, cho AB=9cm BC =12cm giải tam giác vuông ABC(làm tròn đến phút với góc ) b, trên cạnh BC lấy điểm M kẻ BH vuông góc với AM, CK vuông góc với AM.Chứng minh CK=AH× tan ^ABC

Mọi người giúp em với ạ. Cần gấp ạ

My teacher refused to let me leave early. - My teacher refused

1.they _______(learn) English for two years 2.I _______(cook) số I'm really hot 3.she _______(go) to the cinema every weekend for years 4.It________ (rain) the pavement is wet 5.you ______(sleep) for twelve hours

Giúp mình với. Nhanh nha. Cảm ơn nhiều!

Từ các chất Na2O,Fe2(SO4)3,H2O,H2SO4 đặc nóng,Cu.Viết PT điều chế: a.NaOH b.Cu(OH)2 c.CuO d.Na2SO4 e. Hỗn hợp:Fe(OH)3 Cu(OH)2

Giúp mình một bài này thôi ạ Làm đúng nhé! vote 5*

Đề: Complete the passage with the words given in the box. ethnic; for; villages; dress; valleys; home; at; with; provide; their The villages surrounding Sa Pa are (1)_____________ to several of Vietnam’s 54 ethnic minority groups, each with their own distinctive (2)_____________, customs and dialects. These tribes can all be seen (3)_____________ the weekend market in Sa Pa town to trade (4)___________ one another. Apart from its fascinating (5)________ diversity, Sa Pa is also famous (6)__________ its trekking. With Vietnam’s highest peak, Mt. Fansipan (3,143m) only 9km away the (7)___________ and mountains (8)___________ the perfect backdrop for some great treks. Some of the (9)__________ now have local stays where you can stay overnight with a family in (10)_____________ traditional home.