Algebra
posted by Jena .
What are intersections and unions (in algebra). Also, what are complements? And what does MATH stand for in terms of sets? Please answer quickly. Thanks!

You need a tutorial of some sort, or review of your class notes or textbook.
If you don't have any, try reading up the following article, and post followup questions as necessary.
http://en.wikipedia.org/wiki/Set_theory
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