EX2 Chuyển những câu sau sang câu bị động 1. Doctor Zhang Jixian found Corona viruses in Wuhan in 2019. → Corona viruses 2. Dr. Martin Cooper invented the first mobile phone in 1973. → The first mobile 3. The law of supply and demand should govern the prices of goods ->The prices 4. Khac Hung musician composed “Ghen co vy” song three months ago. -> “Ghen co vy” song 5. My mom watched these films last week -> These films 6. They will hold the meeting before May Day. - The meeting 7. My teacher made us study hard for our exam. -> We were 8. France presented the Statue of Liberty to the USA in 1876. -> The Statue of Liberty 9. We will plant more trees along this street. -> More trees 10. Huong Tram performs the song “Em gai mua ” very beautifully. -> The song “Em gai mua” 11. They didn’t invite Nam and Minh to the party. → Nam and Minh 12. They built a big villa near my house. -> A big villa 13. My sister gave me a new pair of jeans on my sixteenth birthday. -> I

cho biểu thức A=( √x/2 - 1/2 √x) .(x- √x/ √x+1 - x+√x/ √x-1) a)rút gọn A b)tìm giá trị của x để A >-6

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giúp mik nhanh vs ạ mik cần rất gấppppppppppppppppp

mn ơi, e đang cần siêu gấp , làm hộ e bài 1 vs ạ

Chữ màu đỏ là : Cho J1 =150° K4=30° a)tính K2 ,K1,J2 b)chứng minh m//n Mình cần gấp nha nếu đc vẽ hình hộ mình

Viết mở bài cho đề trong ảnh hộ mình nha Ko mạng nếu chép mạng sẽ báo cáo vi phạm

Vietnam's New Year is celebrated according to the Lunar calendar. It is officially known as Tet Nguyen Dan, or Tet. It occurs between January twenty-first and February nineteenth. Vietnamese people usually make preparations for the holiday several weeks beforehand. They tidy their houses, cook special food and make offerings. On the New Year's Eve, people sit up to midnight to see the New Year in, then they put on new clothes and give one another this greetings of the season. The first three days are the most important. Vietnamese people believe that how people act during those days will influence the whole year. 1. When does the Vietnam's New Year occur? ............................................... 2. What do people do to prepare for the holiday? ............................................... 3. Why do people sit up to midnight? ............................................... 4. Are the first three days of the festival believed to be very important? ...............................................

Mng giúp em với ạ em đang cần gấp

Cho K = (x+1/x-1-x-1/x+1+x^2-4x-1/x^2-1). x+2003/x a. Rút gọn K b. Tìm x để K nhận giá trị nguyên