Is there any rules to be followed with the sign like switch the sign if it is negative?

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- Dec 29th 2008, 03:21 PMRussianAbsolute Inequalities
Is there any rules to be followed with the sign like switch the sign if it is negative?

- Dec 29th 2008, 04:35 PMShyam
INEQUALITY:

If you have,

then, the sign of inequality is switched if you multiply or divide both sides with a negative number (here, we divide both sides by -2)

ABSOLUTE INEQUALITY:

If you have

then

and

If you have

then

and

and

did you get it??? Mention the exact math-problem or question that you have trouble with.