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cantien98


tính giới hạn
1,Lim(1-1/3)(1-1/6)...(1- 1/ [TEX]\frac{n}{n(n+1)/2}[/TEX]
2,Lim(1- [TEX]\frac{1}{2^2}[/TEX]).(1- [TEX]\frac{1}{3^2}[/TEX])...(1 - [TEX]\frac{1}{n^2}[/TEX])
3, Lim(1- [TEX]\frac{1}{4}[/TEX])(1 - [TEX]\frac{1}{9}[/TEX])...(1- [TEX]\frac{1}{(n+1)^2}[/TEX] )
1,Lim(1-1/3)(1-1/6)...(1- 1/ [TEX]\frac{n}{n(n+1)/2}[/TEX]
2,Lim(1- [TEX]\frac{1}{2^2}[/TEX]).(1- [TEX]\frac{1}{3^2}[/TEX])...(1 - [TEX]\frac{1}{n^2}[/TEX])
3, Lim(1- [TEX]\frac{1}{4}[/TEX])(1 - [TEX]\frac{1}{9}[/TEX])...(1- [TEX]\frac{1}{(n+1)^2}[/TEX] )