外心如果有這個極值性質,一定在中學教科書中有。
所有跟帖:
• 當然,3點一線,得無窮.... -jinjing- ♀ (0 bytes) () 09/01/2011 postreply 20:41:56
• 當然,3點一線,得無窮.... -jinjing- ♀ (0 bytes) () 09/01/2011 postreply 20:41:56
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