A free app for Android, by Tarun Production.

This app is a digital form of the mathematics book of class 9. The app is in pdf format.

It includes all the important topics of class 9 mathematics, including number systems, polynomials, coordinate geometry, linear equations, lines and angles, triangles, quadrilaterals, areas of paralllograms and triangles, circles, constructions, heron’s formula, surface areas and volumes, statistics, and probability.

This app will be useful for students as it contains all the topics in a very short period of time. It is easy to understand and can be read in a short time. It can be read offline. This app is useful for CBSE and all other Boards which follow NCF Curriculam.