How do you solve an indefinite integral?

In calculus, an indefinite integral represents an antiderivative of a function. To solve an indefinite integral, you need to apply the rules of integration, such as power rule, trigonometric rules, and substitution. The resulting antiderivative includes an arbitrary constant, denoted by '+C'. This constant accounts for the potential difference between different antiderivatives of the same function. Therefore, when solving an indefinite integral, it's important to always add the '+C' to the solution. This ensures that all possible antiderivatives of the function are accounted for.