Vt 1 bài văn tuyên truyền để nâng cao í thức chấp hành kỉ luật của trường cho các bạn hsinh trong lớp em

Biến kt trong C++ để làm j vậy ạ:)?

cho a(a-b)=b(b-c)=c(c-a) tính (1+a/b)(1+b/c)(1+c/a)

a+b+c=3, a^2+b^2+c^2=7,a^3+b^3+c^3=15 Tính  a^4+b^4+c^4

IV. Complete the sentences with the correct form of the verbs.
1. Three years ago, we____________(install) a solar water heating system on our roof
2. If the electricity________________(make)from wind turbines, it is green.
3. You should avoid _______________(use) cars or motorbikes for short trips.
4. At the same time tomorrow we ___________ (walk) through the streets of London.
5. London ___________ (be) one of the most populated cities of the world.
6. No one ___________ (want) to be homeless-it's dangerous and stressful
7. So far, Ha Tinh city ___________ (change) a lot.
8. We ___________ (not take) a trip to Ha Long bay due to Covid-19 pandemic yet.