-2.x+3.{12-2[3.x-(20+2.x)-4.x]+1}=45

Cho tam giác abc có 3 đường phân giác AD, BE, CF. Chứng minh $\frac{AF}{AE}$ . $\frac{BD}{BF}$ . $\frac{CE}{CD}$ = 1

Tìm m để -1<=(x^(2)+5x+m)/(2x^(2)-3x+2)<7 có tập nghiệm S=R

$\lim_{x \to -\infty} \frac{x+2}{1-2x}$=-$\frac{a}{b}$ (a,b là hai số tự nhiên và $\frac{a}{b}$ tối giản) giá trị của a-b bằng?

36. Her parents are pleased with her good ............................. ( behave ) 37. His ...................... of some words is not correct. ( pronounce ) 38. My teacher is proud of my ........................ in my study. ( improve ) 39. I can do all the exercises ........................... ( easy ) 40. The Boy Scouts of America is a youth .................................. ( organize ) 41. The form must have the ...................... of the writer. ( sign ) 42. Our teacher always gives us .................... so that we can work hard. ( encourage) 43. If you want to join the club, please fill in this .................... form. ( apply ) 44. Who is the .................. of this car ? ( own ) 45. There are not enough doctors in this ..................... ( neighbor)

Mọi người ơi giúp em với tối nay em nộp rồi

Giúp mình với bài này bồi dưỡng hs giỏi lý

22. Be careful to cover the ............... sockets for the safety of the children. ( electric ) 23. The music is beautiful. It makes the movie ......................... ( forget ) 24. In order to save the ......................., remember to turn off the lights before going out. ( electric ) 25. The boy fell off his bicycle and ........................... broke his arm. ( fortunate ) 26. His broken arm was still ............................. ( pain). 27. A fairy appeared and ............................... changed her old clothes. ( magic ) 28. The tiger wanted to see the farmer’s .............................. ( wise ). 29. The police came ................................ . ( immediate ) 30. Our life is much better with the help of modern .......................... ( equip ) 31. In the story, the prince got ....................... to a poor girl. ( marry ). 32. he is an .......................... student. ( excellence ) 33. Thank you for your ............................... party. ( enjoy ) 34. Remember to check for ........... mistakes before handing in your writing. ( spell ) 35. .................. in sport competitions is open to everyone in our school. ( paticipate )

Viết đoạn văn nêu cảm nhận của em về cuộc sống con người vùng Cà Mau, có sử dụng ít nhất hai từ láy?( từ 7 10 câu) giúp mình vs

Giup mk giải cac bc ra r ms chon d/a nha camon b nhieu