Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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weird prove and exercises with 3 unknows
by zefir
Help Me !
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2007-04-02 00:50:16
by zefir
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