Offline solution book of NCERT class 9 CBSE mathematics textbook. This app provides solution of all chapters and exercise of CBSE class 9th NCERT Maths Textbook. This app is very easy to use. You have to just know the chapter and exercise number to find the solution in few click. This app contains following chapters:- 1. NUMBER SYSTEMS 2.POLYNOMIALS 3.COORDINATE GEOMETRY 4.LINEAR EQUATIONS IN TWO VARIABLES 5. INTRODUCTION TO EUCLID’S GEOMETRY