Cho hàm số  thỏa mãn  và . Tính .  

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  apricot                   January                  Thanksgiving                    necessary

• Choose the best answer for the following sentence:

  ____________ saw Tom go out, did they?
   

• Choose the best answer for the following sentence:

  People believe that what they do on the first day of the year will ______________ their luck during the whole year.
   

• Choose the best answer for the following sentence:

  Only prositive comments are ______________ on the first days of the new year.

• Choose the correct sentence which is built from the words and phrases given:

  Brother / like / read / books / especial / about / natural / world
  
  

• Choose the correct sentence which is built from the words and phrases given:

  Tet / preparation / celebration / use / spread / over / month
  
  

• Choose the correct sentence which is built from the words and phrases given:

  Accident / look / serious / but /fortunate / injure
   

• Choose the word that has the underlined part pronounced differently from the rest:

  hitting                honour                 heart                horrible

• Choose a word that has different stress pattern:

  constancy                   decorate                     government                  encourage

• Choose a word that has different stress pattern:

  sympathy                  experience                      anyone                   orphanage