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Re:直线会和线段AB有交点么

Posted by guoxi at 2009-10-14 16:25:26
In Reply To:直线会和线段AB有交点么 Posted by:sothink at 2009-10-14 15:52:59 
恩，会的。
也许可以分两种情况。
1) MN与AB相交，∠AQB = [min, 180].
2) MN与AB不想交，∠AQB ?
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