user-avatar
fpt1838
2 năm trước
Cho lục giác đều abcdef nội tiếp đường tròn tròn o, r trong các véctơ có điểm đầu điểm cuối chọn tùy ý trong các điểm a b c đ e f o hãy tìm: A các véctơ bằng véctơ ab, tính độ dài véctơ ab B các véctơ bằng véctơ ác, tính độ dài vécto ac
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Read the text below and think of the word which best fits each space. Use only one word. INSPIRATION I have had what, I think, is the (1) ………………………… extraordinary day of my life. While the events are (2) ………………………… clear in my mind, I wish to write them down. Let me introduce (3) ………………………… My name is Lawrence Tyrel. I am thirty-five years old, and in perfect health. I have never been ill in my life, not (4) ………………………… for a day. I am an artist. I am (5) ………………………… very successful, but I earn enough money to (6) ………………………… care of my needs. My only near relative, a sister, (7) ………………………… three years ago. So I have no family. I ate breakfast this morning at eight. After I (8) ………………………… read the morning paper, I smoked my pipe and let my mind wander. I hoped I would think of (9) ………………………… to draw. The room was very hot, even (10) ………………………… the door and window were open. I had decided to go to the public swimming (11) ………………………… when an idea for a drawing (12) ………………………… to me. I began to (13) ………………………… . I was so interested in my work that I forgot to eat lunch. I did not stop until the clock struck five. I looked at what I had done. For a hurried picture, I felt it was the best thing I had ever drawn.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team