Antiderivative Integration Dadbe6
1. **Stating the problem:** You asked about the antiderivative, integration, their graphical representation, real-life examples, and important formulas of integration.
2. **What is an antiderivative?**
The antiderivative of a function $f(x)$ is another function $F(x)$ such that $$F'(x) = f(x).$$ It is also called the indefinite integral.
3. **What is integration?**
Integration is the process of finding the antiderivative. It can be written as $$\int f(x)\,dx = F(x) + C,$$ where $C$ is the constant of integration.
4. **Graphical representation:**
The graph of the antiderivative $F(x)$ is a curve whose slope at any point $x$ equals the value of $f(x)$ at that point.
5. **Real-life examples:**
- If $f(x)$ represents velocity, then $F(x)$ represents position.
- If $f(x)$ is the rate of water flow into a tank, $F(x)$ is the total volume of water.
- If $f(x)$ is the rate of change of temperature, $F(x)$ is the temperature itself.
6. **Important formulas of integration:**
- Power rule: $$\int x^n\,dx = \frac{x^{n+1}}{n+1} + C, \quad n \neq -1$$
- Constant multiple rule: $$\int a f(x)\,dx = a \int f(x)\,dx$$
- Sum rule: $$\int (f(x) + g(x))\,dx = \int f(x)\,dx + \int g(x)\,dx$$
- Integral of exponential: $$\int e^x\,dx = e^x + C$$
- Integral of sine and cosine: $$\int \sin x\,dx = -\cos x + C, \quad \int \cos x\,dx = \sin x + C$$