# algebra 1

evaluate

8C5

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1. Sorry, I do not understand your notation.
Do you perhaps mean the binomialcoefficient C(8,5) ?
That would be
8!
-------
(5!)(3!)
which is
8*7*6
-------
3*2
which is
8*7
which is
56

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2. Damon, back in the olden days, in the days of antiquity when I was teaching that stuff we often used the notation

8C5

and it meant C(8,5)

Some older text book would have used the notation

8P5 to stand for P(8,5)

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