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21 tháng 2 2022
\(\sqrt{\underrightarrow{ }\hept{\begin{cases}\\\end{cases}}\hept{\begin{cases}\\\\\end{cases}}\orbr{\begin{cases}\\\end{cases}}}\)
MW
2
DL
1 tháng 5 2019
\(A=\frac{1}{1^2}+\frac{1}{2^2}+...+\frac{1}{50^2}\)
Có: \(\hept{\begin{cases}\frac{1}{1^2}>\frac{1}{1\times2}\\...\\\frac{1}{50^2}>\frac{1}{50\times51}\end{cases}}\)
\(\Rightarrow A>\frac{1}{1\times2}+\frac{1}{2\times3}+...+\frac{1}{50\times51}\)
\(\Rightarrow A>1-\frac{1}{51}\)
\(\Rightarrow A>\frac{50}{51}\)
MH
7
ND
11 tháng 2 2022
1.He's a little bit takative .He s to talk a lot.
2.She always has a friendly smile with everyone.
3.Everyone is kind to me.They often help me when I need.
4.It is boring to sit on the plane with nothing to read.
5.She is very creative .She writes poetry and paints.
6.It's a really funny film;everyone laughs a lot.
7.Children are often shy of people they don't know.
8.He is often hard-working at shool and he always gets good marks.
9.The teacher wants the students to feel confident about asking questions when they don't understand.
10.I'm not very clever at Math.I often make mistakes in calculations.
4 tháng 1 2022
| tucen bird : chim tu căng |
| peacooks : chim công |
| flamingo : chim hồng hạc |
| parrot : con vẹt |
nightingale : chim hoạ mi |
| oriole : chim vàng anh |
eagle : chim đại bàng |
| bird nest : chim yến |
| dove : chim bồ câu |
| crest : chim chào mào |
| sparrow : chim sẻ |
| jail : chim chích |
| kingfisher : chim bói cá |
| ostrich : chim đà điểu |
29 tháng 12 2021
She was the daughter of a daughter and the only daughter I ever met biological mother to daughter daughter and the rbest daughter of daughter daughter and the daughter daughter of one ☝️ she was very strong 💪
30 tháng 12 2020
1.My name is Huong(Tôi tên là Hương)
2.I'm fine,thank you(Tôi ổn,cảm ơn)
3.I'm nine years old(Tôi 9 tuổi)
4.H-U-O-N-G
5.I play hide and seek(Tôi chơi trốn tìm)
A
13 tháng 4 2019
1 Linda doesn't to eat fast food in the evening
2 Where are the food boxes
3 Kim often does housework on weekends
4 I to walk in the park every day
5 What do you usually do in your free time?
6 I don't have any bicycles in the basement
7 Spring is warm and sunny
8 I don't to wake up early on weekends
9 Jenny has 2 calculators at home
10 I'm not a nurse
13 tháng 4 2019
1 Linda doesn't to eat fast food in the evening
2 Where are the food boxes
3 Kim often does housework on weekends
4 I to walk in the park every day
5 What do you usually do in your free time?
6 I don't have any bicycles in the basement
7 Spring is warm and sunny
8 I don't to wake up early on weekends
9 Jenny has 2 calculators at home 10 I'm not a nurse
\(1+1=2\)