神马作文网计算：lim[(1/n^2+1)+(2/n^2+1)+(3/n^2+1)+……(2k/n^2+1)]
![计算：lim[(1/n^2+1)+(2/n^2+1)+(3/n^2+1)+……(2k/n^2+1)]](/uploads/image/z/1049514-42-4.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9Alim%5B%281%2Fn%5E2%2B1%29%2B%282%2Fn%5E2%2B1%29%2B%283%2Fn%5E2%2B1%29%2B%E2%80%A6%E2%80%A6%282k%2Fn%5E2%2B1%29%5D)
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计算：lim[(1/n^2+1)+(2/n^2+1)+(3/n^2+1)+……(2k/n^2+1)]
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