Giúp em mấy câu này với ạ .Giải thick đc càng tốt ạ . Em cảm ơn

Bài 5.(1,0điểm) Cho tam giác nhọn ABC ,hai đường cao AD và BE cắt nhau tại H, chứng minh AD=DH.tanB.tanC

I. Complete the sentences using “enough”, “too” or the combinations of “enough/too” and other words. 1. She’s eighteen, so she’s (old) ___________________________order a beer. * 2. These earrings are (ugly) ________________________! I will never wear them! * 3. They have cut off the power: I don’t have (light) ___________________________finish reading this book. * 4. He’s (short) _______________________be a basketball player. He’s only 1.60 meters tall. * 5. He’s (tall) ________________________be a policeman. He’s 1.80 meters tall. * 6. The music’s (loud) __________________________. If you turn up the volume control, it will be (loud) ___________________________us; so, please don’t! * 7. Don’t go out! It’s (windy) ___________________________. Can’t you wait until it dies down? * 7. Don’t go out! It’s (windy) ___________________________. Can’t you wait until it dies down? * II. Fill the gaps with the suitable form: so / such / too / enough. 1. He’s _______________an excellent worker! He deserves to get promoted * 2. mmm… This pizza is _______________ tasty. I think I’ll have another piece. * 3. That wall is _______________ high for me to climb. I need a ladder. * 4. They had _______________ terrible weather in England that they came back in two days. * 5. It was _______________ hot coffee that I couldn’t drink it. * 6. You don’t need to hurry up, we have _______________ time to finish this exercise. * 7. Alonso didn’t drive fast _______________ to overtake Schumacher in the last race. * 9. Don’t worry about her. She is clever _______________ to realize what she has to do * III. Complete the following sentences using "enough" 1. My brother is very strong. He can lift this box. * 2. The man is very rich. He can buy this expensive car. * IV. Complete the following sentences using "too" 1. The coffee is extremely hot. I can’t drink it. * 2. She's very clumsy. She can't drive a car. *

em đã từng nghe đc tiếng vang ở đâu? Vì sao e nghe đc tiếng vang đó? nhanh nhanh nhanh

Mới học đến bài phân tích đa thức thành nhân tử

Nghiệm đa thức f(x)=x mũ 2+2 là bao nhiêu

Giúp mình với, mình cần gấp!!!!!!

Một người cần làm chiếc thùng hình trụ tròn xoay không có nắp đậy và thể tích cần đạt được là V. Hỏi kích thước của thùng như thế nào thì tiết kiệm nguyên liệu nhất?

Mới học đến bài phân tích đa thức thành nhân tử

Giải phương trình giúp mình với ạ