Làm hộ emmmmmmmmmmmmmmmmmm với ạ

Câu 3. Cho tam giác ABC có trực tâm H, O là tâm đường tròn ngoại tiếp tam giác ABC. Gọi B’ là điểm đối xứng với B qua O, chứng minh rằng AH = B'C

Mik cân cực gấp, chỉ cần trl kết quả nhanh thôi a

Mọi nguoief giúp mk với ạ làm nhanh nha còn có 5 phút thôi ạ

Nhanh giúp em 40 đ ạ Exercise 4: Fill in the blank with few, a few, little, or a little. 1. We have only _________ time to finish all of the reports by tomorrow. 2. Since taking office last year, the government has made _________ changes in employment policy that concerns the public 4. I enjoy my life here. I have _________ friends and we meet quite often. 5. We have _________ knowledge of market analysis. 6. The government has done _________ or nothing to help the poorest people in this country. 7. _________ cities anywhere in Europe can match the cultural richness of Berlin. 8. Last month was a good month for the company. We found _________ new customers and also increased our profit. 9. Unfortunately, _________ of the companies which we sent offers to showed interest in our products. 10. I had _________ problems with the printer in the office, but it's been fixed now. 11. As so_________ members have turned up at the meeting, it was decided to postpone it until further notice. 12. We have to spend up – there is very_________ time to finish the project. The deadline is next Wednesday. 13. I strongly recommend investing in these shares because you will get a very good return after only _________ years. 14. At the moment we are experiencing some cash flow problems because _________ money is coming in. 15. There is _________ extra added to your salary because you will benefit from the innercity allowance.

Nhanh lên nhé link cần gấp lắm luôn do

em dang can gap a, giai chi tiet e vote 5* a

Các bạn giải cho mik bài này mik cảm ơn

1.Tìm x: a, (x+3)^2 - 2.(x-5)(x+5) + (x-1)^2=4 b (x+3)^3 - 9x(x^2-x) + 8.(x-1)(x+1)=10 c, (2x-1)^3 - (2x-1)(4x+3) + 20x^2 - x( 8x^2 -1)=0

Làm giúp mình bài này vs ạ.Mình cảm ơn