## Area between curves

### The area between curves refers to the region enclosed by two or more curves on a graph

The area between curves refers to the region enclosed by two or more curves on a graph. This concept is commonly used in calculus to find the area of irregular shapes or regions.

To find the area between curves, you generally need to follow these steps:

1. Identify the curves: Determine the equations of the curves involved in the region you want to find the area between.

2. Find the points of intersection: Solve the system of equations formed by equating the two curve equations. These points of intersection will be the boundaries of the region.

3. Determine the integration limits: Based on the points of intersection, determine the limits for integration. These limits will specify the interval over which you will integrate in order to find the area.

4. Set up the integral: Determine which curve is above the other within the interval of integration. The upper curve will be subtracted from the lower curve to find the area between them.

5. Integrate: Write down the integral to represent the area between curves and evaluate it using appropriate integration techniques. This will give you the area of the region enclosed by the curves.

It’s worth noting that the area between curves can be positive or negative, depending on the order in which the curves are subtracted. To obtain a positive area, make sure to subtract the lower curve from the upper curve within the integral.

Overall, finding the area between curves involves a combination of algebraic manipulation, calculus techniques, and geometric visualization. It is an important concept in calculus and can also be useful in various real-world applications, such as finding the area of irregularly shaped fields or determining volumes of solids using cross-sections.

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