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làm ít nhất 3 bài , lm hết = ctlhn ạ xl vì em hết điểm r

pt x^2-2(m+1)x+2m-4=0 Cm nghiệm phân biệt tìm m để A=x1^2+x2^2 đạt giá trị nhỏ nhất

vẽ người ngoài đời thật kiểu 3d ý

Con gì suốt ngày đừng mãi trên câi

Tính tổng A A= ( $\frac{3}{1.8}$ +$\frac{3}{8.15}$ +$\frac{15}{22}$ +....$\frac{3}{106.113}$) - ( $\frac{25}{50.55}$+ $\frac{25}{55.60}$+....+ $\frac{95}{100}$ ) Mong các bạn giúp ạ ! Hứa vote :33

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1. He always drives carefully. He doesn’t want to cause accidents. He always drives carefully in order not to ______________________________________ 2. I get up early in the morning. I want to go to school on time.  I get up early in the morning in order to______________________________________ 3. She wore warm clothes. She didn’t want to get cold.  In order not to______________________________________ 4. They save money. They want to buy a house in the city.  They save money in order to______________________________________ 5. We turned off the lights. We didn’t want to waste electricity.  We turned off the lights in order not to_______________________________ 6. The government should really do something about air pollution.  It’s (high) time______________________________________ 7. He had better get back to work.  It’s (high) time______________________________________ 8. It’s time you saw the doctor now.  You ought ____________________________ 9.I prefer going shopping to doing housework  I would rather______________________________________ 10. Quang would rather stay at home to study than go out for a walk. Quang likes______________________________________

1. It’s necessary that he ( finish)__________that work. 2. She sat at her desk ( write)____________a letter. 3. Mary stood there and watched him ( drive)_________his new car. 4. They’re bound ( visit)___________________Paris. 5. She is interested in ( take)________to the zoo. 6. Are you free now? – No, I’m busy (tidy) ________________ the room. 7.The doctor advised him (avoid)(eat) fatty foods, (have)_________ more vegetables and drink much water. 8. Books and magazines (lie)______ around made his room very untidy. 9.(See)______ from outer space, our earth looks like a “blue planet” 10. If you want to develop inner tranquility, you have to stop (bother)by every little thing that happens. 11.There is suggestion from the doctor that the patient (stop) smoking. 12. To perform this operation, the surgeons use a laser with beam (measure) 0.1 millimeter. 13. When she found her dog (eat) his birthday cake, she couldn’t but (kick) it out 14. He suggest that a petition (draw)up. 15. Jimmy was pleased (admit) to the college 16.The noblest and most imperative task of a Government is (defend) the sovereignty, independence and territorial integrity of the Nation. 17.Critics say the major is too busy (campaign / do) his job properly 18.I appreciated (invite)to your home. 19. This old house is said (build)two hundred years ago 20. Do you expect him (not object)(treat) in this way?

rút gọn A= 7. √16a^6 -5a ³ vs a<0 B=5. √49a^4+3a ² vs a>0