Trên cùng một nửa mặt phẳng bờ chứa tia Oa, vẽ hai tia Oy và Oc sao cho aOb = 60°; aOc = 120° a) Tính số đo bOc b) Chứng tỏ rằng: Ob là tia phân giác của aOc c) Vẽ tia Ot là tia đối của tia Oa, tia Ôm là tia phân giác của cOt . | Chứng tỏ rằng : bOc và cOm là hai góc phụ nhau.

Bài 1: Hoàn thành câu bằng dạng so sánh đúng của từ trong ngoặc: 1. 1.Her daughter is…………….her (beautiful). 2. 2.Summer is………………..season of the year (hot) 3. 3.That dog isn’t………………..it looks (dangerous) 4. 4.In the past, people were………………..than today (polite) 5. 5.It is………..today than it was yesterday (cold) 6. 6.Our hotel was…………..than all the others in the town (cheap) 7. 7.What’s………………..river in the world (long) 8. 8.It was an awful day. It was………….day of my life (bad) 9. 9.Everest is……………mountain in the world. It is………than any other mountain (high) 10. 10.I prefer this chair to the other one. It’s……………… (comfortable) Bài 2: Viết lại các câu sau bắt đầu bằng từ cho trước sao cho nghĩa không thay đổi. 1.This is the most delicious cake I’ve ever tasted. => I’ve………………………….. 2.I’ve never met any more dependable person than George. => George is………………………… 3.There isn’t anybody as kind-hearted as your mother. => Your mother is…………………… 4.There is no better teacher in this school than Mr John. => Mr John is…………………………….. 5.Have you got any bigger than that one? => Is this…………………………………? Bài 3: Dùng các hình thức so sánh với tính từ trong ngoặc: 1.Mary is 10 years old. Julie is 8 years old. Mary is (old)……………………….Julie. 2.The Alps are very high. They are (high)……………………..mountains in Europe. 3.An ocean is (large)………………………….. a sea. 4.A Rolls Royce costs a lot of money. A Twingo costs less money. A Rolls Royce is (expensive)………………………….a Twingo. 5.John’s results were good. Fred’s results were very poor. Fred’s results were (bad)… …..John’s. 6.This exercise is not difficult. It’s (easy)………………………….I expected. 7.The weather is not good today – it’s raining. I hope the weather will be (good)………… …next week. 8.People are not friendly in big cities. They are usually (friendly)………………….in small towns. 9.In the government of a country, the President is (important)…………………person. 10.People say that Chinese is (difficult)……………….to learn than English. 11.This test is not (difficult)…………………as it was last month.

a,Hai góc trong cùng phía như thế nào VD hai góc kề cạnh bên như thế nào VD vẽ hình b, hai góc này có khác gì nhau và cách phân biệt hai góc

vẽ hình trái tim xong viết chữ "Tôi yêu Việt Nam" vào trong. 60 đ đây mn ơi

Bài 1: Hoàn thành câu bằng dạng so sánh đúng của từ trong ngoặc: 1. 1.Her daughter is…………….her (beautiful). 2. 2.Summer is………………..season of the year (hot) 3. 3.That dog isn’t………………..it looks (dangerous) 4. 4.In the past, people were………………..than today (polite) 5. 5.It is………..today than it was yesterday (cold) 6. 6.Our hotel was…………..than all the others in the town (cheap) 7. 7.What’s………………..river in the world (long) 8. 8.It was an awful day. It was………….day of my life (bad) 9. 9.Everest is……………mountain in the world. It is………than any other mountain (high) 10. 10.I prefer this chair to the other one. It’s……………… (comfortable) Bài 2: Viết lại các câu sau bắt đầu bằng từ cho trước sao cho nghĩa không thay đổi. 1.This is the most delicious cake I’ve ever tasted. => I’ve………………………….. 2.I’ve never met any more dependable person than George. => George is………………………… 3.There isn’t anybody as kind-hearted as your mother. => Your mother is…………………… 4.There is no better teacher in this school than Mr John. => Mr John is…………………………….. 5.Have you got any bigger than that one? => Is this…………………………………? Bài 3: Dùng các hình thức so sánh với tính từ trong ngoặc: 1.Mary is 10 years old. Julie is 8 years old. Mary is (old)……………………….Julie. 2.The Alps are very high. They are (high)……………………..mountains in Europe. 3.An ocean is (large)………………………….. a sea. 4.A Rolls Royce costs a lot of money. A Twingo costs less money. A Rolls Royce is (expensive)………………………….a Twingo. 5.John’s results were good. Fred’s results were very poor. Fred’s results were (bad)… …..John’s. 6.This exercise is not difficult. It’s (easy)………………………….I expected. 7.The weather is not good today – it’s raining. I hope the weather will be (good)………… …next week. 8.People are not friendly in big cities. They are usually (friendly)………………….in small towns. 9.In the government of a country, the President is (important)…………………person. 10.People say that Chinese is (difficult)……………….to learn than English. 11.This test is not (difficult)……

c/m: 3(n mũ4)-14n ³+21n ²-10n chia hết cho 24 với mọi n thuộc N (câc bạn phân tích thành 4 số tự nhiên liên tiếp)

P+KClO3----> P2O5+KCl cân bằng oxi hóa khử

Giải phương trình: a)cos8x-cos6x-cos2x+1=0 b)sin³x.cosx-cos³x.sinx=0 c)sin²2x-cos²8x=sin(pi/2+6x)

Giải thích hộ mk đoạn này nhanh nhanh lên nha

Chứng minh 3 điểm C,T,G thẳng hàng