Monday, October 13, 2014

Practicing Entrance Exams: Online/Offline

Chapter 1. SETS
A set is a collection of distinct objects, considered as an object in its own right. For example, the numbers1, 2, 4, and 6 are distinct objects when considered separately, but when they are considered collectively they form a single set of size three, written {1,2,4,6}. Sets are one of the most fundamental concepts in mathematics.
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