求证:1/(2^1-1)+1/(2^2-1)+1/(2^3-1).+1/(2^n-1)≤5/3
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求证:1/(2^1-1)+1/(2^2-1)+1/(2^3-1).+1/(2^n-1)≤5/3
![求证:1/(2^1-1)+1/(2^2-1)+1/(2^3-1).+1/(2^n-1)≤5/3](/uploads/image/z/19737590-14-0.jpg?t=%E6%B1%82%E8%AF%81%EF%BC%9A1%2F%282%5E1-1%29%2B1%2F%282%5E2-1%29%2B1%2F%282%5E3-1%29.%2B1%2F%282%5En-1%29%E2%89%A45%2F3)
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再问: 我也想到了个方法,还是谢谢你了。
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