Làm hộ e vs ăn mai e phải nộp r thx

Chứng tỏ các phân số $\frac{n+1}{2n+3}$  là phân số tối giản , với n ∈ N

Nếu em là ng mắc bệnh covid thì em sẽ làm gì Giúp mình với ạ Cảm ơn

Cách tìm chiều cao khi biết thể tích nước hình hộp chữ nhật

1 người quan sát 1 vật cao 80cm, cách mắt 2m.ảnh trên màn lưới cao 2mm. Tính khoảng cách từ thể thủy tinh đến màng lưới.

II. GRAMMAR (20 points) Part 1: Use the correct forms of the verbs in the brackets to complete the passage below. I (write) (1) ....................................... to express my dissatisfaction of my stay at the Lord Hotel in London last weekend. I (book) (2) ...................................... the hotel in Sweden and also (receive) (3) ............................. information about the hotel. I (promise) (4) ................................ a luxury weekend. However, I (be) (5)..................................... not satisfied. The room was comfortable, but the traffic from the road opposite the hotel (make) (6) .................................... it impossible to (sleep) (7) ............................ I (ask) (8) ...................................... for another room, but no single rooms (be) (9) ................................. available. I required room-service one night and I (have) (10) .................................. to wait for almost one hour before someone came. Part 2: Complete the sentences with the correct prepositions 1. She was very conscious (1).................. her lack of experience on her first day at work. 2. He has a new solution (2).................. the problem. 3. Nobody helped him. He managed it (3).................. his own. 4. The drivers (4) ................... London kept their cars (5) ............... the left. 5. The summer holiday is coming. We are all excited (6) ................. going (7) ............. a long trip (8) ............ the South. 6. The children were amazed (9) .................... the lion show at the circus. 7. Her small garden looks very beautiful in spring because all the flowers are (10) .................... full bloom. III. READING: (25 points) Part 1: Put ONE suitable word in each space Miss Darby was one of those people who never threw anything away. “You never know when you might need it” was (1) ...................................... of her favorite sayings. She lived (2) ...................................... herself in a large Victorian house across the road from us. Although I never went to her house, I knew it was full (3) ...................................... antique furniture, Persian carpets and so on. In every room, there were dozens of paintings so that her house was (4) ...................................... an art gallery. I remember my father (5) ...................................... that she was a “ Staffordshire Darby” but I had (6) ...................................... idea what he meant. I (7) ...................................... out years later that the Darby family had made their money from coal-mining in Staffordshire. We used to make up stories (8) ...................................... her. My sister Alice, (9) ...................................... was a romantic girl, told us that Miss Darby once had a lover, but he walked out one day and she (10) ...................................... saw him again!

Giúp mình giải tự luận câu này với ạ :(

1, Cuộc khởi nghĩa Lam sơn: độ+các môc thời gian chiến thắng Tốt động –chúc ng; Nghệ An,Tân bình- Thuận Hoá, Chi lăng-Xương Giang. +Danh xưng Bình Định Vương là ai? +Hai trận đánh quyết định thắng lợi của khởi nghĩa Lam Sơn? +Người đưa ra ý kiến đưa nghĩa quân Lam Sơn vào miền Tây Thanh hoá là ai? +Ý nghĩa hội thề Đông Quan? +Nguyên nhân thắng lợi của khởi nghĩa Lam Sơn. ai bt giúp mình với

Làm dùm em cả với ạ mỗi đáp ắn

4/5 x 13/14 + 13/14x1/5 và 17/19 x 12/15 x 19/17