giúp mình viết một bài nói tiếng Anh chủ đề là mình chọn unit 9 và làm theo các câu hỏi trên ạ. mình học kết nối tri thức.

Hello everyone, Today I would like to talk about Unit 9 in my Connect Knowledge course. Specifically, I will be answering some questions related to the topic. Firstly, let's take a look at the equation: ∫₀¹ f(x)dx = 10, f(x) - 20, f(x) This equation represents an integral where we are trying to find the area under the curve of the function f(x) between the limits of 0 and 1. We also know that the function f(x) is equal to 20 subtracted from itself, which doesn't give us much information about the actual function. However, we can use this equation to solve for the value of the integral. By using integration techniques, we can find that the function f(x) must be equal to 30 for the integral to equal 10. This means that the area under the curve of the function f(x) between 0 and 1 is equal to 10. Now, let's move on to some questions related to Unit 9. 1. What is the main focus of Unit 9? Unit 9 focuses on integration techniques and how to find the area under curves of functions. 2. Why is it important to learn about integration? Integration is an important tool in mathematics and is used in many fields such as physics, engineering, and economics. It allows us to find the area under curves, which can be used to solve real-world problems. 3. What are some common integration techniques? Some common integration techniques include substitution, integration by parts, and partial fractions. 4. How can we use integration to solve real-world problems? Integration can be used to find the area under curves, which can represent things like velocity, acceleration, and displacement. This information can be used to solve problems in physics and engineering, such as calculating the distance traveled by a moving object. Thank you for listening to my presentation on Unit 9 and integration. If you have any questions, please feel free to ask.