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20 tháng 12 2021

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16 tháng 5 2021

https://www.google.com/search?q=C%C3%A1ch+l%C3%A0m+ti%C3%AAu+b%E1%BA%A3n+c%C3%B4n+tr%C3%B9ng&stick=H4sIAAAAAAAAAONwlVJyPrwwOUMh5_CCXIWSzMOrShWSHu5anKeQfHhLnkJJ0eGdeelSyjjUlGQ83L0xWaHs4a61JVLiITh0qyHpTnq4e6ZC8bENpQolQE0FKOqkcLpkoZS0b2kiTudpuDzcvTQvXSEZSOH3iAYOK4DO6gXZk5cBMmRlXroSEcESpQ3UkayQdGzDw92zkyFKDXEpBgCDn6_8agEAAA&sa=X&ved=2ahUKEwij7P66rs7wAhXs8HMBHfoCDZgQ1QIwCnoECAoQAQ&biw=1280&bih=606

rối quá mik ko hiểu cho lắmbucminh

8 tháng 11 2021

S R N I

\(i=90^o-35^o=55^o\)

\(i=i'\Leftrightarrow i'=55^o\)

8 tháng 11 2021

Cảm ơn nhìu ạ

18 tháng 2 2022

20. eat

21. is playing

22. washes

23. rings

24. bring

18 tháng 2 2022

eat

is playing

washes

rings

bring

Chúc em học tốt

 

5 tháng 7 2021

1 are

2 am

3 is

4 are

5 are

6 are

7 is

8 is

9 is

10 are

IV

1 is writing

2 are losing

3 is having

4 is staying

5 am not lying

6 is always using

7 are having

8 Are you playing

9 are not touching

10 Is - listening

11 Is- winning

12 am not staying

13 is not working

14 is not reading

15 isn't raining

16 am not listening

17 Are they making

18 Are you doing

19 Is - sitting

20 is - doing

21 are-putting

22 are-wearing

23 is-studying

5 tháng 7 2021

2, am

3, is

4,are

5,are

6,are

7,is

8,is

9,is

10,are

IV

1,2,7 OK

3,is having

4,has stayed

5,am not lying

6,always uses

8,Are-playing

9,not to touch

10,Is-listening

11,Are-winning

12,am not staying

13,isn't working

14,isn't reading

15,isn't raining

16,am not listening

17,Are-making

18,Are-doing

19,Is-sitting

20,is-doing

21,do-putting

22,do-wear

23,is-studying

Bài 2: 

a: =>2/3-x=-1/3

hay x=1

b: =>x=-2/5-2/5=-4/5

21 tháng 8

a: =>2/3-x=-1/3

hay x=1

b: =>x=-2/5-2/5=-4/5