Cho hình vuông có cạnh là 5cm nội tiếp đường tròn (O). Hãy tính độ dài đường tròn (O) và diện tích hình tròn (O).

My responsibility is to wash the dishes and take ______ the garbage every day.

A. up

B. in

C. on 

D. out

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each of sentences in the following questions.

 Vietnam defeated Qatar in AFC U23 Championship semifinal. It marked a new episode in Vietnam's football history.

A. Vietnam defeated Qatar in AFC U23 Championship semifinal and marked a new episode in Vietnam's football history.

B. Vietnam defeated Qatar in AFC U23 Championship semifinal that it marked a new episode in Vietnam's football history.

C. Vietnam defeated Qatar in AFC U23 Championship semifinal then it marked a new episode in Vietnam's football history.

D. Vietnam defeated Qatar in AFC U23 Championship semifinal, which marked a new episode in Vietnam's football history

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

As television programmes become more popular, they seem to get worse.

A. The more popular television programmes become, the worse they seem.

B. The most popular television programmes become, the worse they seem.

C. The popular television programmes, the worse they seem.

D. The more popular become television programmes, the worse they seem.

3xy - 6x + y + 3 = 0

=> 3x.(y - 2) + y - 2 + 5 = 0

=> (y - 2).(3x + 1) = -5

Ta có bảng sau:

Vậy...

*Thiếu điều kiện x,y thuộc ...? , bổ sung rồi loại bớt.

a) Câu trần thuật

b) Câu phủ định

c) Trực tiếp