## n Choose k Formula

The formula is known as n Choose k, as from the name, it allows us to choose k elements from n elements. To be more precise, by this formula we …

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# Permutations And Combinations

## n Choose k Formula

The formula is known as n Choose k, as from the name, it allows us to choose k elements from n elements. To be more precise, by this formula we …

## Fundamental Principle of Counting

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In combinatorics, the rule of product or multiplication principle is a basic counting principle, which here we know as the Fundamental Principle of Counting. It is a rule which we …