Cho `a,b,c>0` thỏa mãn điều kiện `a+b+c ≤3/2`.Tìm GTNN của biểu thức `A=a+b+c+1/a+1/b+1/c`

Mn giúp em vs ạ ... Cảm ơn mn nhiều nha

cho a+b+c=0 và a^3+b^3+c^3=18 tìm a,b,c

1. l (not play) computer games when l was a child, but now l (play) a lot of games in the evening. 2. Mike (not smoke) before going to the army. 3. There (be) three parks in our village, but now there (be) only one. 4. Murat (like) cheeseburger, but now he (eat) food. 5. She (not cook) before she got married, but now she (cook) everything. 6. Alex (not have) a mobile phone, but now he (send) text messages easily. 7. When l was single, l (have) big parties in my house, but now l (watch) TV in the evenings. 8. When l was in Vietnam, l (watch) football matches at the stadium. Now l (watch) on TV every weekend 9. A: you (drink) a cup of milk every morning when you were a child? B: yes, l did, but now l (drink) a cup of coffee every morning. 10. My sitter (love) classical music, but she (hate) it when she was younger.

Exercise: Fill in the gaps with a, an, the or ∅. 1. ………….CEO of Coca Cola Company is coming to our meeting. 2. This is ……….….sixth time I’ve watched this film. 3. He was born in ………….seventies. 4. I’ve always dreamed of living in ………….California. 5. Living on ………Mars maybe possible in the future. 6. ………..Earth is our home. 7. This factory produces…….milk. ………….product has been exported to many countries. 8. …………Netherlands and…………..Czech Republic are fighting for a place in the UEFA EURO 2020 quarter-finals. 9. Can you show me ………. way to …………..post office? 10. ………………traffic in Ho Chi Minh city is not very good. 11. My sister came home with ……..owl in her hand. 12. His family went to……….church every Sunday morning. 13. Shuichi Akai worked for…………FBI. 14. Mozart started playing ………piano at the age of three. 15. …………..Latin language is a “dead” language. 16. ………….NATO currently has 30 members. 17. …………..four elements of western culture are: ………..earth, …….…..air, ……….fire, and ………..water. 18. …………..elephant came into our garden again last night. It was bigger than ……………one we saw four days ago. 19. …………..Mount Fansipan is ………..peak of ………….South East Asia. 20. We're having dinner with …………....Smiths tonight. 21. Braille is ………………system of reading and writing by touch used by ……………….blind. 22. …………..Nguyễn Đình Chiểu school in Hà Nội is …………..special school for ……….blind. 23. ……………..people who went to the wholesale market in Vinh from 1/6 to 23/6/2021 need to make ……………medical declaration. 24. On………….11 th of September, 2001, ……….. World Trade Center in …………..New York City was destroyed by the terrorists. 25. She went to …………..jail for 5 years from 2011 to 2015.

Cho` 3 `số tự nhiên `abc` thỏa mãn `abc=123^(345)` Tìm dư của phép chia `a^(30)+b^4+c^(2020) `cho `8`

f(x)=ax^2+bx+c thoả mãn f(1)=f(-1). tìm b

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Viết đoạn văn (khoảng 10~15 câu) theo cách tổng- phân- hợp câu giới thiệu tổ trinh sát mặt đường trong tác phẩm "Những ngôi sao xa xôi" có dùng 1 câu bị động.