K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Các câu hỏi dưới đây có thể giống với câu hỏi trên
DT
Đỗ Thanh Hải
CTVVIP
14 tháng 9 2021
1 have to
2 have to
3 have to
4 has to
5 have to
6 must
7 have to
8 must
9 must
10 has to
DT
24 tháng 9 2021
1. with
2. days
3. some
4. large
5. younger
6. lot
7. ones
8. time
9. listening
10. free
DT
24 tháng 9 2021
1. with
2. days
3. some
4. large
5. younger
6. lot
7. ones
8. time
9. listening
10. free
3 tháng 10 2021
\(M=x^4-4x+7=\left(x^2-4x+4\right)+3=\left(x-2\right)^2+3\ge3\)
\(minM=3\Leftrightarrow x=2\)
\(P=x^2-6x+y^2-2y+12=\left(x^2-6x+9\right)+\left(y^2-2y+1\right)+2=\left(x-3\right)^2+\left(y-1\right)^2+2\ge2\)
\(minP=2\Leftrightarrow\)\(\left\{{}\begin{matrix}x=3\\y=1\end{matrix}\right.\)
D. Writing
Ex1
1 C => messaging (fancy + V-ing)
2 B => better
3 A => more slowly
Ex2
1 My sister is tired; therefore, she can't go to school today
2 Nam can run faster than Tuan
3 My mother detests commuting to work by train because it is always crowded
4 She is keen on doing DIY on the weekend
Ex3
1 Joe studies harder than other students in her class
2 Your father drives a car more carefully than you
(câu này thêm từ " more " vào đề cho hợp lí nha => so sánh hơn của trạng từ dài)
3 Nam is into getting up early in the morning
Phần D
I
1 C => messaging
2 B => better
3 A => more slowly
II
1 My sister is tired. Therefore, she can't go to school today
2 Nam cam run faster than Tuan
3 My mother detests commuting to work by train because it is always crowded
4 She is keen on doing DIY on the weekend
III
1 Jue studies harder than other students in her class
2 Your father drives a car more carefully than you
3 Nam is into getting up early in the morning