giúp em bài 2 với bài 3 đi ạ. Em cám ơn nhiều

1. Viết lại các tập hợp sau bằng cách liệt kê cá phần tử của chúng:

E= { x ∈ Q|( x²-4 )( x²-2 )( 2x+1) =0 }

G= { x ∈ Q|( x²-x-1 )( 2x²-5x+2) =0 }

2. Viết lại các tập hợp sau bằng cách chỉ ra tính chất đặc trưng:

A= { 0;2;4;6;8;10;12;14;16 }

B= { 1;4;9;16;25 }

C= { \(\dfrac{1}{2}\);\(\dfrac{1}{6}\);\(\dfrac{1}{12}\);\(\dfrac{1}{20}\);\(\dfrac{1}{30}\) }

 viết một bài văn trình bày ý nghĩa của thói quen đọc sách đối với sự phát triển trí tuệ và cảm xúc của các bạn trẻ.

cho sinα=\(\dfrac{-3}{4}\)

Tính A= 5cos²α - 7sin²α

Cho phương trình 2x²+3x-1=0. Không giải phương trình trên, hãy tính giá trị của biểu thức sau: \(\dfrac{x1}{x2}\) . ( 1-x₂ ) + \(\dfrac{x2}{x1}\) . ( 1-x₂ )

1. The room has been _______ cleared up by the lazy boy. ( care )
2.There is a ________ match between Leeds United and Manchester United next week. ( friend )
3. Role-play is ________ in developing communication skills. ( help )
4. Many wild animals _____________ due to hunting and disasters a long time ago. ( disappear )
5. _______  pollution is being considered as a great global problem. ( environment )

1. The room has been _______ cleared up by the lazy boy. ( care )
2.There is a ________ match between Leeds United and Manchester United next week. ( friend )
3. Role-play is ________ in developing communication skills. ( help )
4. Many wild animals _____________ due to hunting and disasters a long time ago. ( disappear )
5. _______  pollution is being considered as a great global problem. ( environment )

1. The room has been _______ cleared up by the lazy boy. ( care )
2.There is a ________ match between Leeds United and Manchester United next week. ( friend )
3. Role-play is ________ in developing communication skills. ( help )
4. Many wild animals _____________ due to hunting and disasters a long time ago. ( disappear )
5. _______  pollution is being considered as a great global problem. ( environment )

1. English is ________ taught in Vietnam's Secondary schools. ( primary )
2. We need to _________ our standard of life. ( good )
3.Harvard is a university of _________ in the world. ( repute )
4._________ are concerned about the use of dynamite. ( environment )
5. The students ________ work for their tasks to get good results. ( energy )
6. Our factories, cars, and power stations may poison the environment with _________ gases and chemical waste. ( pollute )

giúp câu 3 vói câu 4b ạ