Giải phương trình bằng cách đưa về phương trình tích:

a ) 3 x 2 − 7 x − 10 ⋅ 2 x 2 + ( 1 − 5 ) x + 5 − 3 = 0 b ) x 3 + 3 x 2 − 2 x − 6 = 0 c ) x 2 − 1 ( 0 , 6 x + 1 ) = 0 , 6 x 2 + x d ) x 2 + 2 x − 5 2 = x 2 − x + 5 2

Although she is so young, she sings beautifully (age)

→ In spite of ………………………………………

Văn bản “Lao xao” mang lại những giá trị nội dung gì?

Gọi giá trị nhỏ nhất, giá trị lớn nhất của hàm số y   =   ln ⁡ x trên đoạn  1 e 2 ; e  lần lượt là m và M. Tích M.m bằng

A. -1

B. 2e

C.  - 2 e

D. 1

Read the passage

   Travelling in the future will be much easier and safer.

   People may travel in a driverless car. Even old or disable people will be able to use it because the car can drive itself. However, a driveless car will be expensive.

   People can choose to go on foot on moving pavements. A Swiss company has invented a system of high- speed moving pavements. People will go through the streets at up to 15 km per hour just by standing on the pavements. This will reduce travelling time of pedestrians and traffic jams effectively. Therefore, more people will leave their vehicle home.

Tick T/F

A Swiss company has invented the system of high- speed moving pavements?