RELATIVE CLAUSE

Combine these pairs of sentences using relative pronouns

1. The meeting was interesting. I went to it

2. they have just rebuilt the building. I work in that building

3. the man is my father, respect his opinion most

4. Wednesday is the day. his plane arrives on that day

5. the city was famous for its food. we spent our vacation in that city.

6. the building is very modern. she lives in that building

7. that is the drawer. I keep all my savings there.

8. Mr. James teaches a class for students. their native language is Japanese.

9. 1983 is the year. she was born in that year.

10. I work in a company. Its employees come from many countries in the world.

11. This's the boy. he plays football very well.

12. we are learning sentences. they contain adjective clauses.

13. The girl is smart. her eyes are bright.

Cây nến cháy hết số thời gian là :
7 h 25 p - 7 h 12 p = 13 phút

Vậy ta có :\(\frac{13}{60}\)

Vậy cây nến cháy trong \(\frac{13}{60}\)h.

I don't know

Tam giác đều ABC có đường cao AH. Khẳng định nào sau đây đúng?

A. sin góc AHC = \(\frac{1}{2}\)

B. sin góc BAH = \(\frac{\sqrt{3}}{2}\)

C. cos góc BAH = \(\frac{1}{\sqrt{3}}\)

D. sin góc ABC = \(\frac{\sqrt{3}}{2}\)

1) Cho tam giác đều ABC. tính P = cos(AB,BC) + cos(BC,CA) + cos(CA,AB)

2) cho α là góc tù. Khẳng định nào sau đây đúng

A. cot α > 0

B. sin α < 0

C. cos α > 0

D. tan α < 0

Tính góc giữa hai véc tơ a,b trong các trường hợp sau

a) véc tơ a = (3,-4), véc tơ b = (4,3)

b) véc tơ a = (2,5), véc tơ b = (3,-7)

c) véc tơ a = (2,-3), véc tơ b = (6,4)

d) véc tơ a = (3,2), véc tơ b = (5,-1)

Cho hình vuông ABCD tâm O. Tính tổng ( AB, DC) + (AD, CB) + (CO, DC)

Khẳng định nào sau đây đúng?

A. cos145* > cos125*

B. sin90 độ < sin100 độ

C. cos95 độ > cos100 độ

D. tan85 độ < tan125 độ