Roberta's law refers to Roberta's law. Lobida's law is a method to determine the indefinite value under certain conditions by taking the derivatives of the numerator and denominator respectively, and then finding the limit.

As we all know, the limit of the ratio of two infinitesimals or the ratio of two infinitesimals may or may not exist. Therefore, when solving this kind of limit, it is often necessary to transform it into a limit algorithm or an important limit for calculation. L'H?pital's law is a general method applied to this kind of limit calculation.

Matters needing attention

1. Finding the limit is one of the important contents and the basic part of higher mathematics, so it is of great significance to master the method of finding the limit skillfully. Robida's law is used to find the fractional limit of numerator and denominator approaching zero.

2. L'H?pital's law is an effective tool to find the limit of indeterminate form, but if only L'H?pital's law is used, the calculation will often be very complicated, so other methods must be combined, such as separating the product factor of non-zero limit in time to simplify the calculation, replacing the product factor with equivalent quantity and so on.

Reference to the above content: Baidu Encyclopedia-Lobida Law