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Dinda Erliananda Teaching Materials – SMA Class XII – Enumeration Rules

The following is an example of the relationship between combinations and

permutations. If we know the set of objects {a, b. c, d} and will be combined and
permuted three by three (3 elements).

Combination (4,3) Permutations (4, 3)

We know that the permutation of 3 elements is 3! = 6. While:

In general, the combination of r elements from n known elements in which is:

or

( )

LET'S WATCH!

Let’s watch this example of combination before we continue to our next topic:

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