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Needs help with math (possible combinations)

DragonFox91

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The binomial coefficient (also known as the "choose" function) is typically found on scientific calculators, so isn't really something that's obscure. For a question like this it's a matter of working through it step by step, and you would come up with the pattern Radagast described.
I was talking more generally. Plus I come from the business world as do most people. I don't use 'scientific' calculators. I got a basic one & that's sufficient for our needs.
 
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