H2 math Inequalities: Use And/Or correctly

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H2 math Inequalities: Use And/Or correctly

Postby gjooheng » Mon Feb 24, 2014 12:46 pm

Many students use the words “And/Or” indiscriminately in solving inequalities. However, there is a very important difference. ‘And‘ means you take the intersection of the solutions sets. ‘Or‘ means you take the union of the solutions sets.

Example to clarify the usage of & and Or
http://mathdistinction.com/2014/02/24/inequalities-use-andor-correctly/

Hope it helps :)

gjooheng
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