Inequalities: a general question

[karmsy]

Where can I find resources, online or otherwise, to help me practice with very advanced and sophisticated inequality problems? The kind of thing we're talking about involves absolute values, and an example is: |y| + |x| < 3; other examples of problems of this difficulty involve the quadratic formula, absolute values, and inequalities.

I own three textbooks. Although I feel I've done a reasonable job of working exercises in each, when it comes to inequalities and absolute values, none of them gets into examples, explanation, or practice to anywhere near the level of detail and sophistication I need. Here they are:

"Precalculus" Redlin/Watson/Stewart
"Precalculus" Sullivan" Sullivan
"Intermediate Algebra: Concepts and Applications" Bittinger/Ellenbogen

 

[mmm4444bot]

Where can I find resources, online or otherwise ...

Search the string "practice exercises inequalities" at Google; there are many pages to scan or peruse.

Spend some time in a school library; they have lots of math textbooks.

Go to a bookstore belonging to one of the national retailers or go to a college bookstore.

~ Mark