Cho mk xin link fb của bn, mk ib chi tiết

a) Góc xAK kề bù với góc 115 độ nên góc xAK = 65⁰

Vì Ky song song với Ax nên góc AKy = xAk = 65⁰ ( so le trong ) 

b) Vì Ky song song với Mz nên zMK + yKM = 180⁰ ( trong cùng phía ) => góc yKM = 35⁰

=> góc AKM = AKy + yKM = 55⁰ + 35⁰ = 90⁰ hay AK vuông góc với MK

III. Choose from the four options....

11. D

12. B

13. A

14. B

15. A

16. C

17. A

18. B

19. B

20. D

IV. Answer the questions about yourself

21. I've lived in Phuc Yen for 10 years

22. I've learnt English for 8 years

23. My father works in a hospital

24. He has worked there for 5 years

25. I've known my closest friend for 3 years

V. Introduce yourself

- tự làm =))

ĐỀ LUYỆN 26

Question I

1. B

2. C

3. A

4. D

5. C

6. B

7. A

8. D

9. D

10. B

Question II

1. injury

2. desmontration

3. assistant

4. safety

5. appearance

6. arrival

7. overcrowding

8. unpleasant

9. information

10. tasty

Question III

1, D

2, B

3, A

- Từ câu 4 trở đi là bạn @Nguyễn Công Tỉnh làm r nên tớ ko làm lại nữa nhé =))

Part 1

1 into

2 which

3 happily

4 aspect

5 if

6 compulsory

Part 2

1c 2f 3b 4g 5a 6e

Part 3

1 opened

2 to be finished

3 repairing

4 driving

5 harmful

6 modernize

7 environmentalists

8 effectively

Part 4

1 disappointing -> disappointed

2 come -> came

Part 5

1 succeed although he tried 

2 my father could speak

3 seen such an interesting 

4 being made to protect

Part 6

1 forest

2 climate

3 in

4 fortunatelt

Part 7

1T 2F 3F 4F

hình bé quá

sin 65⁰=cos 35⁰
\(cos70^0=sin30^0\)
\(tan80^0=cot20^0\)
\(cot68^0=tan32^0\)

Ko nhìn chữ bn ơi, bn cho to hình một tý

f: =-1/8-7/6+3/4-1

=-3/24-28/24+18/24-1

=-31/24+18/24-1

=-13/24-1=-37/24

g: \(=6\cdot\dfrac{-8}{27}-3\cdot\dfrac{4}{9}+\dfrac{4}{3}+4\)

=-48/27+4

=108/27-48/27

=60/27

=20/9

h: \(=\left[6\cdot\dfrac{1}{9}+1+1\right]\cdot\left(-3\right)-1\)

=(2/3+2)*(-3)-1

=-2-6-1

=-3-6=-9

f: -37/24

g: 20/9

h: -9