Q: What was the geometry student looking for at the beach?) y, f; n3 I/ c, b; `) G3 S) U/ A
% B5 H% C% u; z$ h; e8 P6 |! pA: A tangent. 4 h: V4 d& C! P* Y) g0 i* z! p1 d0 N% i+ b: k% g1 R; Y
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(geometry) a straight line that touches the outside of a curve but does not cross it
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发表于 2009-4-8 12:18
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