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(2017-1):2=1008
vì mỗi tg dc tạo thành bởi 2 đoạn thẳng và có 2 cạnh là cạnh của tg khác còn tg đầu thì chỉ có 1 cạnh là cạnh của tg khác nên trừ 1 và các cạnh lặp lại 2 lần nên chia 2
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Complete using the correct form of the words and phrases in th box.
beat-challenge-have fun-interest-organise-score-train |
Start your own sports club
Do you dream of(1).scoring...the winning goal in a football match,or (2)..beating......a top tennis player? Sport(3)...interest.....most young people, and it's a great way to stay healthy and(4)..have fun... at the same time. That's why the local council has decided to help young people who want to(5)..organise.... their own sports club. We know it's a big (6)...challenge.., and that's why we'll give you the money you need to get started. We'll help you find a place to(7).train.....and give you money to find good players in your area. Contact the Town Hall for details
Do you dream of score the winning goal in a football match, or beat a top tennis player? Sport interest most young people, and it's a great way to stay healthy and have fun at the same time. That's why the local council has decided to help young people who want to organise their own sports club. We know it's a big challenge, and that's why we'll give you the money you need to get started. We'll help you find a place to train and give you money to find good players in your area. Contact the Town Hall for details.
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1. examined
2. treatment
3. strength
4. muscles
5. suffering from
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Ta có: \(pq+q=13+q^2\Leftrightarrow q\left(p+1\right)=13+q^2\)
Vì\(q^2⋮q\Leftrightarrow13⋮q\Leftrightarrow\left[{}\begin{matrix}q=1\\q=13\end{matrix}\right.\)
Nếu q =1 thì:\(p+1=14\Leftrightarrow p=13\)
\(\Rightarrow pq=13\left(cm^2\right)\)(1)
Nếu q=13 thì:\(13p+13=182\Leftrightarrow p=13\)
\(\Rightarrow pq=169\left(cm^2\right)\)(2)
Từ (1)(2) ta có: \(max\left(pq\right)=169\left(cm^2\right)\)
Bạn xem hộ mình sai ở đâu k
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Complete the sentences using the correct form of have to, can or should.
1. I'm sorry sir. You __can't___ take mobile phones into the building.
2. Rodney's got a new job. The only problem is he __can't___ leave home at six o'clock in the morning.
3. You _should not______ smoke so much. It's bad for you.
4.Help! Help! I _can't____ swim!
5. Do you think I _should_____ take the job or not?
6. In the UK you__can_____ drive on the left.
7. Children can come into the museum free so your daughter _should not______ pay.
8. _can___ I smoke in here?
9. If you're bored, you __can___ go for a run.
10. __should______ wear any special clothes for your job?
11. It's a holiday! I __can't____ go to work!
12. I'm sorry but you _should not_____ play football here.
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Complete the sentences using the correct form of have to, can or should.
1. I'm sorry sir. You __can't___ take mobile phones into the building.
2. Rodney's got a new job. The only problem is he ___must___ leave home at six o'clock in the morning.
3. You ____shouldn't___ smoke so much. It's bad for you.
4.Help! Help! I ___can't__ swim!
5. Do you think I ___should___ take the job or not?
6. In the UK you____must___ drive on the left.
7. Children can come into the museum free so your daughter ___mustn't____ pay.
8. __can__ I smoke in here?
9. If you're bored, you ___should__ go for a run.
10. ______Must you wear__ wear any special clothes for your job?
11. It's a holiday! I ____have to__ go to work!
12. I'm sorry but you __mustn't____ play football here.
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1. is getting more and more important
2. is becoming bigger and bigger
3. are getting more and more dangerous
4. is getting worse and worse
5. are becoming harder and harder
6. are getting stronger and stronger