Why is C(n,1) equal to n?

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abbey gamble
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C(n,1) ...

I know that C(n,0) =1

But have no clue how to figure out C(n,1) :cry:
 

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By C(n,1) you mean n choose 1?

Do you know the definition of C(n,k)?
 
[tex]C(n,k) = \frac{n!}{k!\left(n-k\right)!}[/tex]
just use this to calculate C(n,1)
 

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