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

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math
2005-10-31 09:36:14

triangle ABC (AB<AC )  , AD is a bisector prove with all I, J on AD we have
angleJBI >angleJCI

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