## Lesson 3

The basic parts of a differential equation are functions and their derivatives.The function represent physical quantities, derivative represents the rate of change and their relationship is represented by the differential equation.

## Lesson 4

This is another lesson on integral calculous

## Lesson 3

The basic parts of a differential equation are functions and their derivatives.The function represent physical quantities, derivative represents the rate of change and their relationship is represented by the differential equation.

## Lesson 3

The basic parts of a differential equation are functions and their derivatives.The function represent physical quantities, derivative represents the rate of change and their relationship is represented by the differential equation.

## Lesson 3

The basic parts of a differential equation are functions and their derivatives.The function represent physical quantities, derivative represents the rate of change and their relationship is represented by the differential equation.

## Lesson 4

This is another lesson on integral calculous