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Giải phương trình sau: a, Cos^2x=Sinx.(1+Sinx) b,Sin3x+Cos2x=Sinx c, Sin^3x +Cos^3x=Cosx d, Sinx +4Cosx=2+Sin2x e, (Sin2x +2Cosx-Sinx-1)/(Tanx+ √3 )=0
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An increasing number of people are now going on holiday to Egypt. Last year, for example, about one and a half million tourists visited Egypt. The population of Egypt is about fifty million and the capital is EL Qahira (Cairo), a busy city of just under nine million people. Although the weather is hot and dry and the most of country is desert, the average temperature from October to March is not too high. The most interesting sights are the pyramids at Giza. However, it is also pleasant to visit Alexandria, Port Said and several other places. 1. According to the passage, how many people visited Egypt last year? A. 1 million B. 1,5 million C. 9 million D. 15 million 2. Cairo is ……………… A. another name of Egypt C. the capital of Egypt B. a busy city of 50 million people D. a pyramid 3. What is the most interesting sight in Egypt? A. Pyramid Giza B. Alexandria C. Port Said D. Both B & C 4. What does the word “desert” in line 4 mean? A. a kind of meal C. land surrounded by seas B. large forest D. large area with sand 5. Which of the following sentences is NOT true? A. More and more people go to Egypt on holiday. B. El Qahira has about 9 million inhabitants. C. It is hot and dry in Egypt. D. The temperature in October is the highest in the year in Egypt.

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