# Category : Science and Education

Archive : AYRFCAL1.ZIP

Filename : CI_8.HLP

Review of Inequalities and Absolute Value.

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x if x ò O

³x³ =

-x if x < O

³x - a³ < b is the same as -b < x - a < b

If a < b then b > a

If a < b then a + c < b + c

If a < b then ac < bc if c > O

If a < b then ac > bc if c < O

If a < b then a/c < b/c if c > O

If a < b then a/c > b/c if c < O

If a < b then ac < bc if c > O

If ab > O then either a > O & b > O , or a < O & b < O

If ab < O then either a > O & b < O , or a < O & b > O

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³ Common Mistakes ³

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Using ³x³ = x instead of the definition for ³x³ .

WRONG If a < b then -a < -b RIGHT If a < b then -a > -b .

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Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/