I worked on this when I was in high school ... long time ago. I do not believe that I solved it by myself at that time.
BeLe solved that problem too...
所有跟帖:
• 你们俩都是牛人!所以那天 --子女教育-- ♀ (41 bytes) () 11/15/2011 postreply 12:27:46
• 牛人们,请问:用Law of sine或cosine 怎样做? -xyz- ♀ (0 bytes) () 11/15/2011 postreply 13:58:56