用Law of sine或cosine怎样做这题?
所有跟帖:
• 1) Use Law of Sine on triangles AED and ACD -BeLe- ♀ (161 bytes) () 11/16/2011 postreply 20:18:46
• 回复:用Law of sine或cosine怎样做这题? -michigan007- ♀ (110 bytes) () 11/16/2011 postreply 21:57:45
• 1) Use Law of Sine on triangles AED and ACD -BeLe- ♀ (161 bytes) () 11/16/2011 postreply 20:18:46
• 回复:用Law of sine或cosine怎样做这题? -michigan007- ♀ (110 bytes) () 11/16/2011 postreply 21:57:45