Tìm GTLN của biểu thức 5-x ²+2x-4y ²-4y

Giải cho e vs mn. y=√x-4

Giúp mình với ạ mình đang cần gấp lắm ạ

Cho AOB= 65 độ.Vẽ BOC và AOD kề bù với AOB Chứng tỏ rằng: a)Hai góc BOC và AOD là 2 góc đối đỉnh b)Hai ti phân giác của 2 góc BOC và AOD là 2 tia đối nhau giúp me vs mai phải nộp r

khóa K khi đóng có truyền đc ko ?

mn giúp mk vs nhé em cần gâps

tính giá trị biểu thức (pls trình bày đầy đủ)

viết một bài thuyết trình về phở của hà nội #no copy

Điểm cực đại, cực tiểu của đồ thị hàm số y=$x^{3}$ - 3$x^{2}$ + 2x

Exercise 1: Use a phrase or clause of purpose to combine each pair of sentences below: I whispered. I didn’t want to disturb anyone. He wishes to have enough money. He wants to buy a new house. Exercise 2: Use a phrase or clause of purpose to combine each pair of sentences below: 1. I’ll write to you. I want you to know my decision soon. 2. These men were talking in whispers. They didn’t want anyone to hear their conversation. 3. She put the meat into the oven. She wanted it to be ready for dinner. 4. The robber changed his address all the time. He didn’t want the police to find him. 5. They did their jobs well. They hoped the boss would increase their salary. Exercise 3: Change phrases of purpose to clauses of purpose or vice versa. 1. Some young people like to earn their own living in order that they will be independent of their parents. 2. We should do morning exercises regularly so as to improve our health. 3. She put on warm clothes so that she wouldn’t catch cold. 4. He hurried to the station so as not to miss the train. 5. We should take advantage of the scientific achievements of the world so that we can develop our national economy. giúp mình với nhaaaa, mình cảm ưn nèeeee :33333~