Xét các mệnh đề sau: I. Dãy số  là dãy số tăng và bị chặn. II. Dãy số  là dãy số giảm và bị chặn. III. Dãy số  là dãy số bị chặn. IV. Dãy số  với  là dãy số bị chặn dưới. Số mệnh đề đúng trong các mệnh đề trên là?

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  A ___________ studies living things and works with plants and animals.
  

• Choose the best answer for the following sentence:

  Whenever a problem __________, we try to discuss and find solution as soon as possible.
   

• Choose the best answer for the following sentence:

  Children are told to be __________ for the whole week and promised to be rewarded at weekends.
   

• Choose the best answer for the following sentence:

  I am proud to have a family who is ___________ of every member.
  
  

• Choose the best answer for the following sentence:

  Family is a good ___________ from which you can join the society with confidence.
   

• Choose the best answer for the following sentence:

  Dolphins __________ in BC waters for millions of years, and are still common today.
   

• Choose the best answer for the following sentence:

  This wine __________ in the cellar for 15 years. When we take it out and open it, it will taste beautiful!
  

• Choose the best answer for the following sentence:

  I __________ some new shorts, but I don't think I like them. Maybe I'll take them back to the store.
   

• Choose the best answer for the following sentence:

  The children __________ all the orange juice yesterday after the heated match! We'll need to get some more.
   

• Choose the best answer for the following sentence:

  First nations people in British Columbia have told stories about the eagle __________ hundreds of years.