Tìm m để y=1/3x^3+1/2mx^2 có cực đại x1, cực tiểu x2 và -2<x1<-1;1<x2<2

Cho ΔABC câm tại A. đường thwanrg BC có phương trình X+2Y-2=0. Đường cao kẻ từ B có pt X-Y+4=0, điểm M(-1,0) thuộc đường cao kẻ từ C. Tìm tọa độ A,B,C

21. She _____ for lost time by studying at weekends. A. got up B. set about C. made up D. put in 22. What is your opinion about Bob’s condition? - I recommend ___________ as much as possible. A. him rest B. that he rests C. that he rest D. him to rest 23. Alan and Sue ___________ an argument. They are not speaking to each other. A. must have B. must have had C. might have D. might had 24. ______________________, we tried our best to complete it. A. As though the homework was difficult B. Thanks to the difficult homework C. Difficult as the homework was D. Despite the homework was difficult 25. Only when the ground is kept moist, _________________ germinate. A. will grass seeds B. grass seeds will C. does grass seeds D. grass seeds does 26. She would rather I ________ harder now. A. study B. studying C. am studying D. studied 27. The concert didn’t come ______ our expectations. A. up to B. up against C. round D. up with 28. Excuse me, is anybody sitting here? - “_________________________”. A. No, thanks. B. Yes, I am so glad C. Sorry, the seat is taken D. You are welcome. 29. My uncle _______ golf when he retired from work. A. took on B. took up C. took over D. took after 30. By the end of next month, we _______ our English course. A. have completed B. will be completed C. will have completed D. completed

Vẽ anime nha mọi người , ko tranh cũ nha

giải hộ mình còn máy bài nữa chia nhỏ cho nhìu ng lm

Giúp mk với, bài 4 nâng cao nha

Mik đang cần gấp Giúp mik vs ak Mik thank trc

giúp mình với mình cần gấp lắm ạ

giúp mình với ạ. cảm ơn các bạn nhiều

Viết đoạn văn khoảng 200 chữ trình bày suy nghĩ về giải pháp để " trở thành phiền bản tốt hơn của chính mình " trong cuộc Sống hôm nay.