Frank Solutions for Class 9 Maths

Chapter Wise list of Frank Solutions 

Sub-topics

Short Introduction

Pure Arithmetic

Rational and Irrational Numbers 

Pure Mathematics explores the boundary of Mathematics with pure reason. Here the students learn about rational and irrational numbers. 

Commercial Mathematics

Compound Interest  

Commercial Maths are basically the business maths which is used by the commercial enterprises to record and manage their business transactions. In this chapter, students will learn about Compound Interest. 

Algebra

• Expansions

• Factorisation

• Simultaneous Linear Equations in two variables. (With numerical coefficients only)

• Indices/ Exponents

Algebra is a broad spectrum of Maths. Here we study about mathematical symbols and rules governing those symbols. We will study about expansion. Factorization, linera equations, indices. 

Geometry

• Triangles

• Pythagoras Theorem

• Rectilinear Figures

• Circle

Branch of Maths which studies size, shapes, positions, angles. Here we will study the Triangles,

Pythagoras Theorem,

Rectilinear Figures, and

Circle. 

Statistics

Introduction, collection of data, presentation of data, Graphical representation of data, Mean, Median of ungrouped data.

This is the science of collection, analyzing, presenting and using the data. We study about how to present the data collected, mean, median, and mode in this chapter. 

Mensuration

Area and perimeter of a triangle, Area and circumference of circle. Surface area and volume of Cube and Cuboids.

This is a part of geometry which studies the lengths, areas and volumes. Here the students will study - Area and perimeter of a triangle, Area and circumference of circle. Surface area and volume of Cube and Cuboids.

Trigonometry

Trigonometric Ratios, Simple 2-D problems involving one right-angled triangle, Concept of trigonometric ratios of complementary angles and their direct application.

This branch of Maths studies the side length, and angles of triangles. We will study Trigonometric Ratios, Simple 2-D problems involving one right-angled triangle, Concept of trigonometric ratios of complementary angles and their direct application in this chapter.

Co-ordinate Geometry

Cartesian System, plotting of points in the plane for given coordinates, solving simultaneous linear equations in 2 variables graphically and finding the distance between two points using distance formula.

This is an interesting branch of maths studying the geometry via the coordinating points.