Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**reconsideryouranswer****Member**- Registered: 2011-05-11
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I wish a had a more interesting signature line.

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**hammana****Member**- Registered: 2012-03-02
- Posts: 48

For any positive a and b we have

1/(a-b)+1/(a+b)>2/a

therefore

1/(25-4)+1/(25+4)>2/25

1/(25-2)+1/(25+2)>2/25

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