Chủ đề:
Bài 1: Căn bậc haiCâu hỏi:
Cho biểu thức P=\(\dfrac{2\sqrt{x}+1}{x+\sqrt{x}}-\dfrac{1-\sqrt{x}}{\sqrt{x}}:1+\dfrac{2}{\sqrt{x}}\)với x nhỏ hơn 0
1.Rút gọn P
2.Tính giá trị cuả P biết x=2019 -2\(\sqrt{2018}\)
Peter had a letter from his friend yesterday.She lives in Nigeria.In her letter,she said that she was coming to England the following month.If she comes,she will get a surprise.Peter is now living in a beautiful new house in the country.
The house was completed five months ago.The house has many large rooms and there is a lovely garden.It is a modern house, so it looks strange to some people.It must be the only modern house in the district .Peter said that he wanted her to stay with his family.
1.Where does Peters friend live?→
2.Where is Peter living now?→
3.When was the house completed?→
4.Did he want her to stay with his family?→
Viet Nam lies in Southeast Asia.It is divided...............three rigions:Northern Viet Nam,Central Viet Nam and Southern Viet Nam .Viet Nam has a lot of.........places which attract tourists from every where.Ha Noi is the capital and Ho Chi Minh City is............biggest city in the country .The population is about 90 milion.Viet Nam ......full member of ASEAN on 28 july 1995.