rút gọn biểu thức M= 1/1.2+1/2.7+......+1/50.97

Các câu hỏi liên quan

Rewrite the following sentence using the passive. Number 1 is an example for you. 1. I have heard her sing this song several times. -> She has been heard to sing this song several times. 2. People saw him steal your car. --> ………………………………………………………………………………… 3. The teacher is watching her student do the homework. --> ………………………………………………………………………………… 4. He won’t let you do that silly thing again. --> ………………………………………………………………………………… 5. People make the children work hard. --> ………………………………………………………………………………… 6. They made him work all day. --> ………………………………………………………………………………… 7. The detective saw the woman putting the jewelry in her bag. --> ………………………………………………………………………………… 8. The terrorists made the hostages lie down. --> ………………………………………………………………………………… 9. Police advise drivers to use an alternative route. --> ………………………………………………………………………………… 10. She helps me to do all these difficult exercises. --> ………………………………………………………………………………… 11. They think that the first temple existed during the reign of Le Thanh Tong in the 15th century. -> It _____________________________________________________________ -> The first temple ………………………………………………………………………… 12. People know that Phong Nha Cave was found in the 16th century by Cham people. -> It _____________________________________________________________ -> Phong Nha Cave…………………………………………………………………… 13. People claim that the site of the Perfume Pagoda was discovered over 2000 years ago. -> It ______________________________________________________________ -> ………………………………………………………………………………………… 14. They thought that he went to a local restaurant with his girlfriend. -> It _____________________________________________________________ -> He ……………………………………………………………………………………… 15. They have suggested that bright children should take their exams early. -> It _____________________________________________________________ -> Bright children …………………………………………………………………………