~$C_{\left ( m,n \right )}=\frac{m!}{\left ( m-n \right )!n!}$~ for nonnegative integers m and n, ~$m\geq n$~. If C(5,3) = C(5,x) and ~$x\neq 3$~, what is the value of x?
0
1
2
4
5
登录 或 注册 后可以参加讨论
扫描二维码，直接登录