Mastering Mental Ability: Inequality

 

Mastering Mental Ability: Inequality


Inequality is one of the very important topics in all competitive examinations and scholarship examinations. It is all about dealing with these set of symbols, greater than, lesser than, greater than or equal to, less than or equal to, and equal to.

Two real numbers or two algebraic expressions related by the symbols <, >, = or = form an inequality.

Equal numbers may be added to (or subtracted from) both sides of an inequality. Both sides of an inequality can be multiplied (or divided) by the same positive number. But when both sides are multiplied (or divided) by a negative number, then the inequality is reversed.

The values of x, which make an inequality a true statement, are called solutions of the inequality.

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