n分之1的前n项和怎么证明 当n趋向于无穷 极限是无穷
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n分之1的前n项和怎么证明 当n趋向于无穷 极限是无穷
![n分之1的前n项和怎么证明 当n趋向于无穷 极限是无穷](/uploads/image/z/16610119-7-9.jpg?t=n%E5%88%86%E4%B9%8B1%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E6%80%8E%E4%B9%88%E8%AF%81%E6%98%8E+%E5%BD%93n%E8%B6%8B%E5%90%91%E4%BA%8E%E6%97%A0%E7%A9%B7+%E6%9E%81%E9%99%90%E6%98%AF%E6%97%A0%E7%A9%B7)
简要说明如下:
1/3+1/4>1/4+1/4=1/2
1/5+1/6+1/7+1/8>1/8+1/8+1/8+1/8=1/2
1/9+1/10+1/11+1/12+1/13+1/14+1/15+1/16>1/16*8=1/2
1/3+1/4>1/4+1/4=1/2
1/5+1/6+1/7+1/8>1/8+1/8+1/8+1/8=1/2
1/9+1/10+1/11+1/12+1/13+1/14+1/15+1/16>1/16*8=1/2
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