C/m: \(\sqrt{4+2\sqrt{3}}-\sqrt{4-2\sqrt{3}=2}\)

tam giac abc vuong tai A goc B=60 ve duong cao AH duong trung tuyen AM ve HE vuong goc AB tai E, HF vuong goc AC tai F

C/m AM vuong goc EF

1.They dry the beans in the sun.

=>The beans are dried in the sun.

2.The teacher is going to tell a story.

=>A story is going to be told by the teacher.

3.They stopped playing the match after half an hour.

=>The match was stopped after half an hour.

4.A burglar broke into house last week.

=>The house was broken into by a burglar last week.

5.You have to fill in an application form.

=>An application form has to be fill in.

6.Someone has taken my briefcase.

=>My briefcase has been taken.

7.They did not look after children properly.

=>Children were not looked after properly.

8.They may use this room for the classroom.

=>This room may be used for the classroom.

9.Will you invite her to your wedding party?

=>Will she be invited to your wedding?

10.Is she going to write a poem?

=>Is a poem going to be written by her?

ko vì\(\sqrt[3]{27+8}\)

có kết quả rất kinh khủng!

Nội dung nào sau là điểm khác biệt cơ bản giữa hiệp định sơ bộ (6-3-1946) với hiệp định Giơ ne vơ về Đông Dương (1954)?

A. Tính chất hiệp định 

B. Vấn đề rút quân 

C. Vấn đề ngừng bắn 

D. Vấn đề thừa nhận tính thống nhất của Việt Nam

A. Tự sự   

B. Biểu cảm

C. Miêu tả 

D. Nghị luận