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Combine the two sentences using relative clauses.
1. The river is the Sai Gon River. It flows through Ho Chi Minh City.
→ .....The river which flows through Ho Chi Minh City is the Sai Gon River.....................................
2. Mr Phong hasn’t come yet. He is supposed to be at the meeting.
→ ....................Mr Phong, who is supposed to be at the meeting,hasn’t come yet...............................................................
3. Our solar system is in a galaxy. The galaxy is called the Milky Way.
→ .......................Our solar system is in a galaxy which is called the Milky Way............................................................................
4. I come from a city. This city is located in the southern part of the country.
→ .....................................I come from a city which is located in the southern part of the country.....................................................
5. I’ve recently gone back to the town. I was born in the town.
→ ..................I’ve recently gone back to the town where I was born.........................................................
6. Do you know the name of the hotel? John is staying at the hotel.
→ .................................Do you know the name of the hotel where John is staying?...................................................
7. There are some words. They are very difficult to translate.
→ ...................................There are some words which are very difficult to translate..........................................................
8. What is the name of the man? You borrowed his car.
→ ...............................What is the name of the man whose car you borrowed?..................................................
9. This watch costs a lot of money. I have lost the watch.
→ ............................This watch which I have lost costs a lot of money..............................
10. We were given a lot of information. Most of the information was useless.
→ .................................We were given a lot of information most of the which was useless...................................................
1. The river which flows through Ho Chi Minh City is the Sai Gon River.
2. Mr Phong who is supposed to be at the meeting hasn’t come yet.
3. Our solar system is in a galaxy which is called the Milky Way.
4. I come from a city which is located in the southern part of the country.
5. I’ve recently gone back to the town where I was born.
6. Do you know the name of the hotel where John is staying?
7. There are some words which are very difficult to translate.
8. What is the name of the man whose car you borrowed?
9. This watch which I have lost costs a lot of money.
10. We were given a lot of information most of the which was useless.
Rewrite the sentences without changing the meaning.
1. He can’t go out because he has to study for his exam.
→ If he didn't have to study for his exam, he could go out
2. She is lazy so she can’t pass the exam.
→ If she weren’t lazy, she could pass the exam.
3. He will pay me tonight; I will have enough money to buy a car.
→ If he pays me tonight, I would have enough money to buy a car.
4. He smokes too much; that’s why he can’t get rid of his cough.
→ If he didn't smoke too much, he would get rid of his cough
5. She is very shy, so she doesn’t enjoy the party.
→ If she weren’t shy, she could enjoy the party.
6. I get a work permit. I will stay for another month.
→ If I get a work permit, I will stay for another month
7. He doesn’t take any exercises. He is so unhealthy.
→ If he didn’t take any exercises, he is so unhealthy
8. We can’t get the ket because I don’t have the right change.
→ If I had the right change,we could get the ket
9. Study hard or you won’t pass the exam.
→ If you study hard, you would pass the exam
10. Don’t be impatient or you will make mistakes.
→ If you are impatient, you will make mistakes.
1. The river which flows through Ho Chi Minh City is the Sai Gon River.
2. Mr Phong who is supposed to be at the meeting hasn’t come yet.
3. Our solar system is in a galaxy which is called the Milky Way.
4. I come from a city which is located in the southern part of the country.
5. I’ve recently gone back to the town where I was born.
6. Do you know the name of the hotel where John is staying?
7. There are some words which are very difficult to translate.
8. What is the name of the man whose car you borrowed?
9. This watch which I have lost costs a lot of money.
10. We were given a lot of information most of the which was useless.
a) Do M là điểm chính giữa cung AB nên AM⌢=MB⌢AM⌢=MB⌢ .
Suy ra ACM^=MCB^ACM
=MCB
(Hai góc nội tiếp chắn các cung bằng nhau)
Lại có ACM^=ANM^ACM
=ANM
(Hai góc nội tiếp cùng chắn một cung)
Nên INK^=ICK^INK
=ICKXét tứ giác KICN có INK^=ICK^INK=ICK
nên KICN là tứ giác nội tiếp hay C, N, K, I cùng thuộc một đường tròn.
b) Do N là điểm chính giữa cung BC nên BN⌢=NC⌢BN⌢=NC⌢
Vậy thì BMN^=KBN^BMN
=KBN
(Hai góc nội tiếp chắn các cung bằng nhau)
Xét tam giác BMN và tam giác KBN có:
Góc B chung
BMN^=KBN^BMN
=KBN
⇒ΔBMN∼ΔKBN(g−g)⇒ΔBMN∼ΔKBN(g−g)
⇒BNKN=MNBN⇒NB2=NK.NM⇒KNBN=BNMN⇒NB2=NK.NM.
x^8 - x^7 + x^2 - x + 1
= x^7(x-1) + x(x-1) +1
= (x-1)(x^7 + x) + 1
= (x^2-x)(x^6+1) + 1
Ta có: x^2 - x lớn hơn hoặc = 0; x^6 + 1 >0
=> (x^2-x)(x^6+1) lơn hơn hoặc bằng 0
=> (x^2+1)(x^6+1) + 1 > 0
=> x^8 - x^7 + x^2 - x + 1 > 0 (đpcm)
ko biết dâu nha