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OpenStudy (xmoses1):
Type the formula for the number of combinations of n things taken r at a time. C(n,r)=
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OpenStudy (kropot72):
\[C(n, r) = \frac{n!}{r!(n-r)!}\]
OpenStudy (xmoses1):
Ah! Thanks @kropot72
OpenStudy (kropot72):
You're welcome :)
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