The document you uploaded seems to contain a set of multiple-choice questions in Vietnamese, with each question having different options. Here's a brief summary of the questions:

1. Câu 1: Concerns a cubic function and its properties such as asymptotes, extreme values, and a maximum value on a specific interval.
2. Câu 2: Involves calculating probabilities for two people (An and Bình) kicking a ball into a goal, with statements about independent events and specific probability outcomes.
3. Câu 3: Deals with the cost of buying and maintaining an electronic device, including specific cost calculations and conditions related to the devices over time.
4. Câu 4: Involves geometry in 3D space, with statements about points, planes, distances, and relationships between them.

Do you want help solving or discussing any of these specific questions? Let me know how you'd like to proceed!