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Quadratic Equation : A general quadratic equation is expressed as ax2 + bx + c = 0 where a ¹

Equation : It is defined as a statement of equality which involves one or more variables. Linear equation : If

Identity : It is an equally which is true for all values of variables. SOME FORMULAE product of an identity

Rational Expression : If m and n are two integers, n ¹ 0 then the quotient m/n is not necessarily

Polynomial : Polynomial means an algebriac sum made up of many terms involving powers of the variable. A polynomial of

Purchase and sale of shares of different companies have become very popular these days among large number of people. People

Taxation : Government has many sources of getting money from the people in the form of taxes, custom duty, taxes

A bank is an institution which carries on the business on money deposits and money landed. Bank Deposits : Saving

Compound Interest : Compound interest is defined as the interest which is every time added to the principal whenever it

In arithmetic various formulae are used to solve problems. Some Important ones are given below : 1. Operations with indices