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evaluate the expression 8c3
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8!/(8-3)!3!
8!(8-3)=5!3!
so it comes out to 8!(5!) and 3!
is this combination problem? forgot what C stands for
would it come to 24c?
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you just solve the factorials
so 8x7x6/3x2x1
8C3 is 8!/ (5! * 3!)
224?
answer is 56
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nCr = n! / ( (n-r)! * r!) is the formula
so 56?
for all of it?
yeah 336/6 = 56
8C3 = 56 :)
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ok thx
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