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\(M=x^4-4x+7=\left(x^2-4x+4\right)+3=\left(x-2\right)^2+3\ge3\)
\(minM=3\Leftrightarrow x=2\)
\(P=x^2-6x+y^2-2y+12=\left(x^2-6x+9\right)+\left(y^2-2y+1\right)+2=\left(x-3\right)^2+\left(y-1\right)^2+2\ge2\)
\(minP=2\Leftrightarrow\)\(\left\{{}\begin{matrix}x=3\\y=1\end{matrix}\right.\)
giúp mik giải và giải thích chi tiết câu này vs ạ:
possibly he isn't the captain of Star Trek.(may)
=>
![](https://rs.olm.vn/images/avt/0.png?1311)
possibly he isn't the captain of Star Trek.(may)
=>He may not be the captain of Star Trek.
![](https://rs.olm.vn/images/avt/0.png?1311)
giải thích chi tiết hộ mình với ạ càng chi tiết càng tốt
1. She is living in China because she got married to a Chinese.
-> She got married to a Chinese so she is living in China.
2. I am tired now because I went home late yesterday.
-> I went home late yesterday so I am tired now.
3. She did the homework last night so she gets a high score today.
-> She gets a high score today because she did the homework last night.
4. It rained yesterday so I don’t go to school today.
-> I don’t go to school today because it rained yesterday.
5. I missed the end of the film so I don’t know who the murderer was.
-> I don’t know who the murderer was because I missed the end of the film.
because: bởi vì
S + V + O + because + S + V +O
so: nên
S + V + O + so + S + V + O
#Dịch theo nghĩa rồi làm thôi :)
1.-> She got married to a Chinese so she is living in China.
2.-> I went home late yesterday so I am tired now.
3.-> She gets a high score today because she did the homework last night.
4.-> I don’t go to school today because it rained yesterday.
5.-> I don’t know who the murderer was because I missed the end of the film.
![](https://rs.olm.vn/images/avt/0.png?1311)
18. iron-doing
19. wakes
còn lời giải chi tiết thì... mk ko biết .-.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
I
1. c
2. d
3. b
4. d
5. d
II
1. a (trọng âm rơi 2 còn lại rơi âm 3)
2. b (trọng âm rơi 2 còn lại rơi âm 1)
3. c (trọng âm rơi 2 còn lại rơi âm 1)
4. d (trọng âm rơi 3 còn lại rơi âm 2)
5. a (trọng âm rơi 2 còn lại rơi âm 1)
IX
1. a
2. a
3. c
4. a
5. a
Bài I, II tớ làm bên dưới roi. Có gi k thắc mắc ib tớ nha.