combination of isometries   3 videos

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  Combinations

  Precalculus Topics in Discrete Math

  How to find the number of combinations of a set.

  chose choosing combination order doesn't matter pens
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  Combinations vs. Permutations

  Precalculus Topics in Discrete Math

  How to know when to use combinations or permutations.

  combination permutation order matters order doesn't matter
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  Fundamental Counting Principal

  Precalculus Topics in Discrete Math

  How to use the fundamental counting principal.

  combination tree diagram fundamental counting principal