Cho là đồ thị hàm số . Xét các mệnh đề sau: . đối xứng qua trục . . đối xứng qua trục . . không có tâm đối xứng. Mệnh đề nào đúng?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Hai lò xo A và B có chiều dài tự nhiên bằng nhau được bố trí như hình vẽ. Độ cứng của lò xo A là 100 N/m. Khi kéo đầu tự do của lò xo B ra, lò xo A dãn 5 cm, lò xo B dãn 1 cm. Tính độ cứng của lò xo B.    

• Điểm nào sau đây là điểm cực đại của hàm số    

• Dưới thời Bắc thuộc, mâu thuẫn bao trùm trong xã hội nước ta là
  
• Chọn đáp án không đúng:
  Dê được phân bố ở:
  

• I'm very fond ______ natural spectacular scenery.

• He had spent _______ time writing an essay about his childhood.

• Chọn đáp án không đúng:
  Vai trò của gia cầm:
  
• Chính sách nào dưới đây không phải là chính sách bóc lột về kinh tế mà các triều đại phương Bắc đã áp dụng ở nước ta?
  
• Read the passage and choose the correct answer:
  Las Vegas, Nevada, is the most famous city for gambling in the United States. Some people say that Las Vegas is a mispronunciation of 'lost wages'. The casinos and hotels have so many neon lights that people call this city in the desert 'The City of Lights'.
  Each of the big hotels in Las Vegas is special. Going into one is like entering another world. One hotel is like ancient Egypt. Another is like a tropical island. Still another is like New York City. These hotels have shows with famous entertainers. Everything looks expensive. But the rooms cost half the price of the rooms in other places. And the restaurants have all-you-can-eat meals for very little money. That's because the hotels make their money from the gambling casinos.
  Las Vegas started in 1905 as a small train stop. There. were only a few buildings in the middle of the desert. In 1946. a famous gangster named Bugsy Seigel built the first casino. He was murdered in 1947. "Iris made him and Las Vegas more famous! In the early 1950s, tourist went to Las Vegas not only to gamble. They went to watch atomic bomb tests in the desert outside the city. In those days, people didn't know it was dangerous. They thought it was exciting.
  Las Vegas is also famous for its many wedding chapels. Like all of Las Vegas, they are open twenty-four hours a day. Getting married is easy. A couple just pays a few dollars for a license, and they can get married immediately. They don't have to wait. Many famous movie stars were married in Las Vegas.
  It is interesting that Las Vegas has more churches for its population anywhere else in the United States. That's not counting welding chapels. Another interesting fact is that tourists have a greater chance of having a heart attack in Las Vegas than in any other American city.
  Question. Some people think Las Vegas means. . . . . . . . . . . . . . . .
  
• Nguyên nhân chủ yếu nào làm cho phong trào Tây Sơn bị thất bại trước cuộc tấn công của Nguyễn Ánh?