A Conversation for Binomial Theorem

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Post 1


I haven't read the whole page, but some of the math here is incorrect. In the first part of the combinatorics section, it talks about how many ways there are to pick r items out of a bag of n items where order doesn't matter. They say that there are n! ways, which is not true. If order doesn't matter, divide by the number of permutations of the n items you pick, n!, to get n!/n!=1 way to take n items out of n items where the order doesn't matter. Which makes sense. So if you're actually trying to understand this stuff, go to a different website.

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