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Mathematics 14 Online
OpenStudy (anonymous):

Evaluate 5 C 4.

OpenStudy (anonymous):

this is confusing

OpenStudy (ranga):

\[\Large ^{n}C _{r} = \frac{ n! }{ r!(n - r)! }\]

OpenStudy (anonymous):

which is n which is r

OpenStudy (ranga):

n = 5 ; r = 4

OpenStudy (anonymous):

ok thank u

OpenStudy (ranga):

you are welcome. What did you get?

OpenStudy (anonymous):

36 but i think that is way wrong

OpenStudy (ranga):

\[\Large \frac{ 5! }{ 4!1! } = \frac{ 5 * 4! }{ 4! * 1 } = 5\]

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