`A=`$\sqrt[3]{10+6√3}$ `-` $\sqrt[3]{-10+6√3}$

Các câu hỏi liên quan

7. Em tán thành hay không tán thành với những việc làm nào sau đây? Vì sao? a) Bạn Bích đến xin cô giáo nâng điểm Toán cho mình. ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… b) Sắp có đợt tuyển người vào làm việc ở cơ quan do ông Lâm làm giám đốc. Ai mang quà cáp đến biếu, ông Lâm đều không nhận. ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… c) Cán bộ kiểm lâm vì nghèo đã chặt một số cây lấy gỗ để bán. ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… d) Nhân viên phục vụ phòng ở khách sạn nhặt được ví tiền của khách để quên, đã mang trả lại cho khách. ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

II. Choose the word whose main stressed syllable is placed differently from that of the others. 1. A. indicator B. variety B. afford D. convenient 2. A. overcrowding B. affordable C. metropolitan D. educational 3. A. various B. conduct C. conflict D. dweller 4. A. affordability B. forbidden C. convenience D. research 5. A. cosmopolitan B. communication C. multicultural D. metropolitan 6. A. acceptable B. affordable C. reliable D. fashionable III. Choose the best answer a, b, c or d to complete the sentence. 1. French bakers are fighting for the traditional baguette to be given UNESCO World Heritage ____. A. site B. status C. admission D. recognition 2. The government has done nothing to resolve the ______ over nurses’ pay. A. conflict B. fight C. crash D. war 3. They see the outdoors as a ______ activity, not a job opportunity. A. exhausted B. international C. recreational D. volunteering 4. Savannah is one of the best ______ cities for job growth. A. part B. whole C. full D. medium-sized 5. The railway station was criticized for its lack of disabled ______. A. facilities B. system C. schedule D. preparation 6. About 85 per cent of city ______ breathe heavily polluted air. A. villagers B. livers C. dwellers D. members 7. Dublin was a very different place in those days, like a village, not the wonderful _____ city it is now. A. rural B. cosmopolitan C. reliable D. pleasant 8. We are ______ a survey to find out what our customers think of their local bus service. A. affording B. indicating C. considering D. conducting 9. We are looking for someone who is ______ and hard-working. A. hopeful B. lacked C. reliable D. smooth 10. It is difficult to ______ the exact cause of the illness. A. attract B. forbid C. take D. determine 11. Sacramento’s central location and low cost of living make this place a ______ city. A. fabulous B. forbidden C. poor D. determining 12. How can we encourage people to get along with each other in this ______ society? A. considerable B. multicultural C. rural D. crashing 13. Some workers can only afford homes outside ______ areas. A. outskirts B. rural C. growing D. metropolitan 14. This is a top-quality product at a very ______ price. A. high B. costly C. affordable D. effective