Cho góc xOy = 60°. Tia Ot là tia phân giác của góc xOy, tia Ot' là tia đối của tia Ot. Trên nửa mặt phẳng bờ tt' chứa tia Ox. Vẽ tia Oz sao cho góc t'Oz = 30°. CMR: Góc t'Oz và góc tOy là 2 góc đối đỉnh.

tập hợp các giá trị của tham số m để phương trình x^2 +y^2 -2x +4y +m^2 +4m =0 là phương trình của đường tròn

Giup mik voi Cam on Mik danh gia 5 sao

sin(2x-π/6)=sin(x+π/3) thoả |x|=<2 mong mng giúp ạ🥰

GIÚP MÌNH VS Ạ MÌNH HỨA SẼ VOTE 5SAO VÀ CẢM ƠN Ạ V – Combine the following sentences, use the structure “ ENOUGH TO” 1. Ba is tall. He can play volleyball..................................................................................................................... 2. Lan is intelligent. She can do that test...................................................................................................................... 3. Hoa is skillful. She can make her own handkerchief...................................................................................................................... 4. His parent are rich. The can buy a new car...................................................................................................................... 5. Phong and Thu aren’t tall. They can’t paly basketball...................................................................................................................... 6. Tam is old. Ha can ride a motorbike...................................................................................................................... 7. Phu is very strong. He can carry those heavy bags............................................................................................ 8. The children are tired. The go to bed early...................................................................................................................... 9. He is hungry. He eats three loaves of bread...................................................................................................................... 10. We are thirsty. Wa can drink a lot of water................................................................

Cali Chữ Kí Hoặc Viết Chữ Thư Pháp :" Cô Gái "

a) Tìm cặp (x, y) với x, y là các số nguyên thỏa mãn : xy + 3x - y = 6 b) Cho a, b thỏa mãn (18a – 5b )(27a + b) ⋮ 17. Chứng minh rằng: (18a – 5b)(27a + b)⋮ 289

dễ nên ko nhìu đ nha thông cảm ^^

GIÚP MÌNH VS HỨA VOTE 5SAO VÀ CẢM ƠN Ạ III – Writhe complete sentences in Simple Present tense, using the cues given. 1. Hoa / often / play / badminton/ afternoon...................................................................................................................... 2. Lan / usually/ read/ book / recess...................................................................................................................... 3. Ba/ seldom/ go/ school/ bus...................................................................................................................... 4. Her father/ ride/ his motorbike...................................................................................................................... 5. Lien’s mother/ teach/ Math/ our school...................................................................................................................... 6. Hoa and Lan/ be/ same class/ this year..................................................................................................................... .7. Nam/ have/ short black hair...................................................................................................................... 8. Lan/ introduce/ Hoa/ many new friends...................................................................................................................... 9. Tam/ often/ write/ letters/ her grand-parents...................................................................................................................... 10. TheIr/ sometimes/ go fishing/ their friends................................................................

Giúp mình cả 2 bài luôn nhé ạ, mình cảm ơn!