Cho cấp số cộng  thỏa mãn . Tính tổng 10 số hạng đầu của cấp số cộng trên

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

  television                     document                     variety                     beautiful

• Choose a word that has different stress pattern:

  constantly                       investment                         document                         basketball

• Find a mistake in the four underlined parts of the sentence and correct it:

  There would be a lecture by Mr. Brown next week.

• Find a mistake in the four underlined parts of the sentence and correct it:

  We've run out of cooking oil. I'll going to get some.

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

  through                        house                         bound                            announce

• Find a mistake in the four underlined parts of the sentence and correct it:

  How did you manage getting here so quickly?

• Find a mistake in the four underlined parts of the sentence and correct it:

  Most my classmates want to have a holiday in Nha Trang.

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

  refused                        advised                          released                        raised

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

  technology                     entry                  try                   country

• Find a mistake in the four underlined parts of the sentence and correct it:

  You would better be careful not to miss the train.