Solving Rational Inequalities Analytically

Exercise 1.

Find the solutions of the inequality

\begin{displaymath}\frac{x-1}{x+2}\leq 0.\end{displaymath}

Answer.

The critical points are x=1 and x=-2, leading to the following picture:

The set of solutions of the inequality is the interval (-2,1].

[Back] [Exercises]
[Algebra] [Trigonometry] [Complex Variables]
[Calculus] [Differential Equations] [Matrix Algebra]

S.O.S MATHematics home page

Do you need more help? Please post your question on our S.O.S. Mathematics CyberBoard.

Helmut Knaust
1998-06-16

Copyright © 1999-2024 MathMedics, LLC. All rights reserved.
Contact us
Math Medics, LLC. - P.O. Box 12395 - El Paso TX 79913 - USA
users online during the last hour