Đáp án + giải thích các bước giải:
`[(\sqrt{(x+1)^2})^3]'=3(\sqrt{(x+1)^2})^2.(\sqrt{(x+1)^2})'=3(x+1)^2 ([(x+1)^2]')/(2\sqrt{(x+1)^2})=3\sqrt{(x+1)^2} (2(x+1)(x+1)')/2=3\sqrt{(x+1)^2}(x+1)(x'+1')=3\sqrt{(x+1)^2}(x+1)(1+0)=3\sqrt{(x+1)^2}(x+1)`
Đáp án: `y' = 3x² +6x +3`
Giải thích các bước giải:
`y = (\sqrt{(x+1)^2})^3`
`=> y= (x+1)^3`
`=> y' = 3( x+1)^'. (x+1)^2`
`=> y' = 3.1.(x² +2x +1)`
`=> y' =3x² +6x +3`
Chuyển thành câu bị động, làm nhưng câu mk khoanh thôi nhé
tìm m để y= |$x^{3}$+3$x^{2}$-3+m| có ba cực trị
Hai vòi nước chảy vào bể, vòi thứ nhất chảy được 2/7 bể, vòi thứ hai chảy được 1/3 bể, còn lại 140 lít thì đầy bể. Hỏi đầy bể nước chứa được bao nhiêu lít?
Write a full sentence 1. Why don't we run the experiment again?(suggest) 2. I hope you are happy to work late tonight(mind) 3.The rain continued to fall for twenty four hours (went) 4. James was sorry that he had not kept another copy of the data (regretted) 5.Helen is taking flying lessons (learning) 6. They asked him if he'd like to send in an application (invited) 7. The results must be checked twice (need) Help me!
Vẽ đậu mầm chán nản ;-; NL : .-.
cấu tạo điệu thức thứ tự nhiên?
Giải thích ra giúp mình nhá. Giúp mình vs ạ. Mình đang gấp lắm. Mình hứa sẽ tim và vote 5* đầy đủ ạ. Ctlhn cho bạn nào nhanh nhất ạ
Giúp mình 2 bài này và đặt 10 câu đố như bài 5 với ạ :(((
61. What terrible traffic! Just look at the long queue. We _______ miss our flight. A. will B. are going to C. Both A & B are correct D. Both A&B are incorrect 62. I _______ send Alex your letter when I see her tomorrow. A. will B. am going to C. Both A & B are correct D. Both A&B are incorrect 63. The board of directors have reached the final decision. Harrison _______ lead the marketing team from next month. A. will B. are going to C. Both A & B are correct D. Both A&B are incorrect 64. I hope you _______ visit my new house in Charlington some time. A. will B. are going to C. Both A & B are correct D. Both A&B are incorrect 65. A: What are your plans for the holiday? B: I _______ my grandparents and then go trekking in Sapa. A. am going to visit B. will go to visit C. will go D. go 66. The sky is blue. It _______ another hot day. A. will be B. is going to be C. Both A & B are correct D. Both A&B are incorrect 67. Our industrial output _______ from $2 million in 2002 to $4 million this year. A. rises B. has risen C. was rising D. rose 68. It is blowing so hard. We _______ such a terrible storm before. A. have never known B. have never been knowing C. never know D. had never known
33. My mother made this cake yesterday. => This cake .... 34. Lan can't go with us because she has so much homework to do. => If.... 35. "What aspect of learning English do the students find most difficult?" The teacher asked me. => The teacher asked me ... 36. My friend began to collect stamps in 2005. > My friend has... ××× 1. He built that house last year. =>That house.... 2. "Do you want to have some cold drink, Lan?" asked Ba > Ba asked.... 3. Because I don't have a pencil, I can't draw a picture. -> If .... 4. My elder brother began learning English 3 years ago. =>My elder brother.... Help meeeeeee làm nhanh giùm em với em phải nộp cho thầy luôn
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến
