ABSTRACT
At the end of this chapter, you should be able to:
• define an inequality • state simple rules for inequalities • solve simple inequalities • solve inequalities involving a modulus • solve inequalities involving quotients • solve inequalities involving square functions • solve quadratic inequalities
An inequality is any expression involving one of the symbols <, >, ≤ or ≥
p<q means p is less than q p>q means p is greater than q p≤q means p is less than or equal to q p≥q means p is greater than or equal to q
(i) When a quantity is added or subtracted to both sides of an inequality, the inequality still remains.
