Khi giải bất phương trình . Một học sinh làm như sau (I)  (1) (II)  (2) (III) Vậy bất phương trình có tập nghiệm  Cách giải trên đúng hay sai? Nếu sau thì

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  Every time when I missed the bus, I ___________ to return home late.
   

• Choose the best answer for the following sentence:

  The ring you found ___________ be returned to an old lady who had lost it.
   

• Choose the best answer for the following sentence:

  I didn’t have much time, but I __________ visit a lot of places of interest in London.
  
  

• Choose the best answer for the following sentence:

  I _________ understand this letter. Will you translate it for me?
   

• Choose the best answer for the following sentence:

  Daisy’s parents don’t let her go to late-night disco. She ___________ be at home
  at 9 o’clock in the evening.
   

• Choose the best answer for the following sentence:

  Peter ___________ apologize for his bad behaviour yesterday.
   

• Choose the best answer for the following sentence:

  I agree. You ___________ apologize for not inviting him to your birthday party.
   

• Choose the best answer for the following sentence:

  __________ you give me some advice about the language course?
   

• Choose the best answer for the following sentence:

  Why didn’t you give me a call yesterday?

  We _________ discuss everything together.
  
  

• Choose the best answer for the following sentence:

  They have plenty of time, so they needn’t ___________.