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Mathematics 21 Online
OpenStudy (anonymous):

0! = 0 True False

OpenStudy (smarty):

true :D

OpenStudy (anonymous):

thanks :D

OpenStudy (smarty):

np

OpenStudy (callisto):

No... 0!=1

OpenStudy (anonymous):

?

OpenStudy (callisto):

Consider\[_5C_0 = \frac{5!}{(5-0)!0!} = \frac{5!}{5!(1)}=1\]If 0!=0, then it's the whole thing would be undefined...

myininaya (myininaya):

Mr. @Callisto is correct! :)

OpenStudy (anonymous):

oh alright thanks

OpenStudy (callisto):

@myininaya You told me you will not make the same mistake.... :(

myininaya (myininaya):

Sorry, Mrs. @Callisto .

myininaya (myininaya):

Ms.*

OpenStudy (callisto):

Thanks @myininaya :D

OpenStudy (unklerhaukus):

false 0!=1

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