阅读理解题 (1)我们把从1开始至n的n个连续自然数立方和记作Sn,那么有:阅读理解题(1)我们把从1开始至n的n个连续自然数立方和记作Sn,那么有:S1=1^3=1^2=[1*(1+1)/2]^2;S2=1^3=2^3=(1+2)^2=[2*(1+2)/2]
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![阅读理解题 (1)我们把从1开始至n的n个连续自然数立方和记作Sn,那么有:阅读理解题(1)我们把从1开始至n的n个连续自然数立方和记作Sn,那么有:S1=1^3=1^2=[1*(1+1)/2]^2;S2=1^3=2^3=(1+2)^2=[2*(1+2)/2]](/uploads/image/z/1338799-31-9.jpg?t=%E9%98%85%E8%AF%BB%E7%90%86%E8%A7%A3%E9%A2%98+%EF%BC%881%EF%BC%89%E6%88%91%E4%BB%AC%E6%8A%8A%E4%BB%8E1%E5%BC%80%E5%A7%8B%E8%87%B3n%E7%9A%84n%E4%B8%AA%E8%BF%9E%E7%BB%AD%E8%87%AA%E7%84%B6%E6%95%B0%E7%AB%8B%E6%96%B9%E5%92%8C%E8%AE%B0%E4%BD%9CSn%2C%E9%82%A3%E4%B9%88%E6%9C%89%EF%BC%9A%E9%98%85%E8%AF%BB%E7%90%86%E8%A7%A3%E9%A2%98%EF%BC%881%EF%BC%89%E6%88%91%E4%BB%AC%E6%8A%8A%E4%BB%8E1%E5%BC%80%E5%A7%8B%E8%87%B3n%E7%9A%84n%E4%B8%AA%E8%BF%9E%E7%BB%AD%E8%87%AA%E7%84%B6%E6%95%B0%E7%AB%8B%E6%96%B9%E5%92%8C%E8%AE%B0%E4%BD%9CSn%2C%E9%82%A3%E4%B9%88%E6%9C%89%EF%BC%9AS1%3D1%5E3%3D1%5E2%3D%5B1%2A%281%2B1%29%2F2%5D%5E2%3BS2%3D1%5E3%3D2%5E3%3D%281%2B2%29%5E2%3D%5B2%2A%281%2B2%29%2F2%5D)
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