Apt Inequalities — Free Aptitude Tutorial
Learn Apt Inequalities in Aptitude with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
TL;DR: Learn Apt Inequalities in Aptitude with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.
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Apt Inequalities in Aptitude
Linear inequality: ax + b > c → x > (c-b)/a (if a>0). Flip sign when dividing/multiplying by negative.
Graphing: > or < use open circle on number line. ≥ or ≤ use closed circle.
Quadratic inequality: ax²+bx+c > 0. Find roots first, then test intervals.
System of inequalities: Find the intersection of solution sets.
Absolute value: |x| < a → -a < x < a. |x| > a → x < -a or x > a.
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