D
daiduongsautham_91


Cho n thuộc N,n\geq 2.
Chứng minh rằng:
[tex]C_n^0.C_n^1.C_n^2...C_n^n\leq (\frac{ 2^n-2}{ n-1} )^{n-1} [/tex]
Chứng minh rằng:
[tex]C_n^0.C_n^1.C_n^2...C_n^n\leq (\frac{ 2^n-2}{ n-1} )^{n-1} [/tex]