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lonlonlonhaha
2 năm trước
Giải thích giúp em từ dòng 1 xuống dòng 2 với ạ : cosx=cos5x <=> cos5x=cos(pi-x) Tại sao cosx=cos(π-x) ạ
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Đoạn văn tiếng Anh về những lợi ích khi sống ở thành phố Life in the city is full of activity. Early in the morning hundreds of people rush out of their homes in the manner ants do when their nest is broken. Soon the streets are full of traffic. Shops and offices open, students flock to their schools and the day's work begins. The city now throb with activity, and it is full of noise. Hundreds of sight-seers, tourists and others visit many places of interest in the city while businessmen from various parts of the world arrive to transact business. Then towards evening, the offices and day schools begin to close. Many of the shops too close. There is now a rush for buses and other means of transport. Everyone seems to be in a hurry to reach home. As a result of this rush, many accidents occur. The city could, therefore, be described as a place of ceaseless activity. Here, the drama of life is enacted every day. ai giúp mik làm cho bài văn trên ngắn lại với

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