Giúp mình với mn mình cảm ơn.
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![](https://rs.olm.vn/images/avt/0.png?1311)
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\(B=2+2^2+2^3+2^4+...+2^{99}+2^{100}=2\left(1+2^2+2^3+2^4\right)+...+2^{96}\left(1+2^2+2^3+2^4\right)=2.31+2^6.31+...+2^{96}.31=31\left(2+2^6+...+2^{96}\right)⋮31\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Em bị deadline dí à :))?? Mấy cái này chỉ cần quy đồng, nhóm hay chuyển vế gì là ra mà, em phải tự làm trước , câu nào không hiểu hay không biết làm thì mới đăng chứ!
![](https://rs.olm.vn/images/avt/0.png?1311)
1 Yesterday was cooler than today
2 Salim is the most beautiful in her team
3 His house is the highest in my city
4 No one in her class is as intelligent as Lan
5 BJ is one of the greatest tennis players in the world
1. Yesterday was colder than today.
2. Salim is the most beautiful in her team.
3. His house is the highest house in my city.
4.No one in her class is more intelligent than Lan
8. BJ isthe greatest tennis player in the world.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 2:
a: Để hai đồ thị song song thì 2m-1=m+2
hay m=3
![](https://rs.olm.vn/images/avt/0.png?1311)
9. is - are studying
10. plays - is playing
11. stay
12. is going to invite
13. collecting
14. will be
15. am doing
16. go