Đáp án+Giải thích các bước giải:
`1/(sqrt2-sqrt1)+1/(sqrt3-sqrt2)`
`=(2-1)/(sqrt2-1)+(3-2)/(sqrt3-sqrt2)`
`=((sqrt2-1)(sqrt2+1))/(sqrt2-1)+((sqrt3-sqrt2)(sqrt3+sqrt2))/(sqrt3-sqrt2)`
`=sqrt2+1+sqrt3+sqrt2`
`=sqrt3+sqrt2+1`
Giúp tui nha ko cop trên mạng nha câu 35 ngay chỗ cho định lí nha ai nhanh 5 sao
mn ơi giải giúp mình với ạ ....mình đang cần gấp ạ
cuu minh voi :(((( IV. Give the correct form of the words in the brackets : 1. The ao dai is the _____ dress of Vietnamese women. TRADITION 2. Tet holiday is the most important _____ for Vietnamese people. CELEBRATE 3. We have to be _____ when riding our bikes on the streets. CARE 4. The old man walked _____ to the park. SLOW 5. The author's _____ is communicated through his song. HAPPY 6. We find Huong very _____. COMMUNICATE 7. They went to see most of the __________places. INTEREST 8. His sudden _____ must be a shock to her and her family. DIE 9. The other _____ admired him. COMPLETE 10. We can only get their by plane. There is no _____. CHOOSE 1. Sony is a big firm which is _____ in Vietnamese's market. COMPETE 2. Doctors and _______ have reported on how we are all affected by the noise around us. SCIENCE 3. The __________ between Vietnam and China is recovered. FRIEND 4. The boss refused to meet the Union's _____. DELEGATE 5. Many _____________ activities will be held tomorrow. CULTURE 6. The _____ of the moon for the earth causes the tides. ATTRACT 7. Our team played _____. We lost. SUCCESS 8. It is said that Hue is a _____ city. PEACE 9. He came first in the _____. COMPETE 10. Good _____were the keys to the success of the 23th Sea Games. PREPARE 11. We are _____ interested in AIDS. ESPECIAL 12. We all have our _____. WEAK 13. His _____ makes him jobless. SHY 14. Your answer is _____ right. EXACT 15. Everyone admires her _____ to help the poor. READY 16. Dick becomes _____ because of his laziness. JOB 17. I put my book near the desk for _____. CONVENIENT 18. They work hard in order to _____ good crops from poor soil. PRODUCT 19. I hope there won’t be too much _____ in getting a work permission. DIFFICULT 20. She divorced him because of his _____ to the children. KIND 21. His _____ made him jump out of his seat. EXCITE 22. I like him because he always talks to his parents _____. POLITE 23. Many _____ choose to go to this part of the seaside. SWIM 24. They hate being _____ on their parents. DEPEND 25. If you want to attend the course, you must pass the _____ examination. WRITE
một mảnh đất hình chữ nhật có nửa chu vi là 24m.Chiều dài hơn chiều rộng 6m.a,tính diện tích mảnh đất đó.b,trên mảnh đất đó cứ 3m vuông người ta trồng được một cây táo.Hỏi cả mảnh đất đó người ta trồng được bao nhiêu cây táo
Giải chi tiết cho em bài này với ạ
so với diện tích toàn lãnh thổ ,địa hình đồi núi nước ta chiếm a 2/3 b 4/5 c 3/4 d 5/6 mọi người giải dùm em ạ khoanh dùm em đi ạ em đang cần gấp huu em cảm ơn mn người rất nhìu ạ huu
Cho các số đo thời gian 3 giờ 2 giờ 50 phút 3 giờ 27 phút 2 giờ 5 phút A.Các số đo thời gian trên viết theo thứ tự từ bé đến lớn là : B.Các số đo thời gian trên viết theo thứ tự từ lớn đến bé là :
Mọi người ơi giúp mình với😢 1/ He ...... very well when he was eight. a.can swim. b.could swim. c.is able to swim. d.would swim. 2/ These workers ......working in a factory..... a supervisor came in. a.were / when b.were / while c.are / after d.have / before 3/ When I arrived, they were having dinner. a. When they started having their dinner, I arrived. b. I came in the middle of their dinner. c. They ate their dinner as soon as I arrived. d. I came to their invitation to dinner.
Các số sau đây có bằng nhau không ? 0,(31) ; 0,3(13).
giuppppppppppppppppppp emmmmmmmmmmmmm voiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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