求证1/1+1/2^(3/2)+1/3^(3/2)…+1/n^(3/2)

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求证1/1+1/2^(3/2)+1/3^(3/2)…+1/n^(3/2)

求证1/1+1/2^(3/2)+1/3^(3/2)…+1/n^(3/2)
求证1/1+1/2^(3/2)+1/3^(3/2)…+1/n^(3/2)<2

求证1/1+1/2^(3/2)+1/3^(3/2)…+1/n^(3/2)
1/1+1/2^(3/2)+1/3^(3/2)…+1/n^(3/2)<3
不信你用计算器敲几项试试.