Discrete Math II - 6.5.2 Permutations with Indistinguishable Objects

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We continue our study of enumeration by examining permutations with objects that are identical. The most common example is in permutating the letters of a word where some letters are repeated.

Video Chapters:
Intro 0:00
Reminder: Permutations with Repetition (Distinct Objects) 0:08
Understanding Permutations with Indistinguishable Objects 1:12
Multinomial Coefficient 3:22
Practice with Me 5:24
Your Practice 10:24
Up Next 17:10

This playlist uses Discrete Mathematics and Its Applications, Rosen 8e

Power Point slide decks to accompany the videos can be found here:

The entire playlist can be found here:
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That's such a cool trick about the multinomial coefficients, as in the 11-permutations of the letters in MATH... What an excellent lesson. Thanks!!!

davidstone
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have my DMS exam tomorrow this is really helpful.... thank you

kiran
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Thank you for helping me pass discrete math 1 and now discrete math 2 <3

Monsta
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whats the difference with distinguishalble and distinguishable permutation?

DelaRosaChatlynB
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What are the differences between distinguishable and indistinguishable?

christiancarter