npoisonivy25p8kz2o npoisonivy25p8kz2o

13-07-2018
Mathematics

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In how many ways could you choose two different letters from the letters c,o,u,n,t ?

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konrad509 konrad509

13-07-2018

[tex] _5C_2=\dfrac{5!}{2!3!}=\dfrac{4\cdot5}{2}=10 [/tex]

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