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What was the geometry student looking for at the beach

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发表于 2009-4-8 12:18 | 显示全部楼层 |阅读模式
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Q: What was the geometry student looking for at the beach?
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A: A tangent. * r( V4 ^4 z' E9 H+ |/ w) k

2 z7 a$ c" G$ u, A4 i% htangent  
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7 K. o! S- |4 |) M+ o (geometry) a straight line that touches the outside of a curve but does not cross it
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