+**12c2** commonly represents the [Combinations](/wiki/combinations) formula, specifically "12 choose 2". This mathematical expression calculates the number of distinct ways to select 2 items from a set of 12, without regard to the order of selection. It evaluates to 66, a fundamental concept in [Counting](/wiki/counting) and discrete mathematics.
+## See also
+- [Permutations](/wiki/permutations)
+- [Probability](/wiki/probability)
+- [Factorial](/wiki/factorial)
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