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Mathematics 11 Online
OpenStudy (anonymous):

What is 5C3

OpenStudy (anonymous):

5C^3?

OpenStudy (anonymous):

It looks like numbers and a letter to me; I could just be going crazy, though.

OpenStudy (***[isuru]***):

u r talking about hexadecimal number system ... am i correct ?

OpenStudy (amistre64):

my guess is (5 choose 3)

OpenStudy (amistre64):

choose 3 numbers, starting at 5 and working down ... multiply them aC3 = a(a-1)(a-2)

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