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Mathematics 19 Online
OpenStudy (anonymous):

How many strings can be formed using the letters in the word router (that is, R-O-U-T-E-R)? I thought it was 6! but it isn't

OpenStudy (anonymous):

6!

OpenStudy (anonymous):

It's 6!/2!, I believe I answered that in your other thread

OpenStudy (zarkon):

do you have to use all the letters?

OpenStudy (anonymous):

yes all the letters

OpenStudy (zarkon):

then MarineFury is correct

OpenStudy (anonymous):

I got the same answer as MarineFury

OpenStudy (anonymous):

we devide to 2! because theree is two R?

OpenStudy (anonymous):

Yes, because there are 2 Rs.

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