# combinatorics

## Permutations and Combinations | Counting | Don't Memorise

Author: Don’t Memorise In this video, we will understand the basics of counting for Permutations and Combinations (GMAT/GRE/CAT/Bank PO/SSC CGL/SAT) To learn more about Permutations and Combinations, visit: https://bit.ly/PermutationsCombinations In this video we will learn: 0:00 Introduction 0:57 Counting: Basics …

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## Combinatorics | Math History | NJ Wildberger

Author: Insights into Mathematics We give a brief historical introduction to the vibrant modern theory of combinatorics, concentrating on examples coming from counting problems, graph theory and generating functions. In particular we look at partitions and Euler’s pentagonal theorem, Fibonacci …

## Example: Combinatorics and probability | Probability and combinatorics | Precalculus | Khan Academy

Author: Khan Academy Probability of getting a set of cards Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/precalculus/prob_comb/prob_combinatorics_precalc/e/probability_with_perm_comb?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Watch the next lesson: https://www.khanacademy.org/math/precalculus/prob_comb/prob_combinatorics_precalc/v/permutations-and-combinations-4?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Missed the previous lesson? https://www.khanacademy.org/math/precalculus/prob_comb/prob_combinatorics_precalc/v/probability-of-dependent-events?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Precalculus on Khan Academy: You may think that precalculus is simply …

## Introduction to combinations | Probability and Statistics | Khan Academy

Author: Khan Academy Watch the next lesson: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/e/combinations_1?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Watch the next lesson: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/v/combination-formula?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/permutations/v/permutations-and-combinations-2?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. …

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## Permutations and Combinations Tutorial

Author: The Organic Chemistry Tutor This video tutorial focuses on permutations and combinations. It contains a few word problems including one associated with the fundamental counting principle. Permutations are useful to determine the different number of ways to arrange something …

## Combinatorics and Higher Dimensions – Numberphile

Author: Numberphile Featuring Federico Ardila from San Francisco State University – filmed at MSRI. More links & stuff in full description below ↓↓↓ Federico previously on Numberphile: https://www.youtu.be/OfEv5ZdSrhY Federico’s webpage: http://math.sfsu.edu/federico/ Antarctica Timelapse: https://www.youtu.be/o71TFQBTCG0 Objectivity: https://www.youtube.com/c/objectivity_videos Thanks to our Patrons, …

## Combination formula | Probability and combinatorics | Probability and Statistics | Khan Academy

Video source Watch the next lesson: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/e/combinations_1?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Watch the next lesson: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/v/handshaking-combinations?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/combinations-combinatorics/v/introduction-to-combinations?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did …