# Application of Differential Equation

**Application of Differential Equation**

Differential equation can be defined as a mathematical equation for an unknown function of one or more variables and the Variables are related to the value of the function itself and its derivation of various order. *Differential equation* plays an important role in the field of math, physics, engineering etc.

*Some useful relations:*

- Slope of tangent =
- Slope of normal =
- Length of tangent =
- Length of normal =
- Equation of tangent at is
- Equation of Normal
- Radius of curvature or

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