假設長度可以是負數
設ABC和DEF是直角三角形
AB和BC及DE和EF的夾角是直角
-1會等於1?
但√-1又是否等於√1?
一條小小的數學問題?
2015-09-16 3:22 pm
回答 (1)
2015-09-20 10:11 am
Your assumption is wrong, so all consequent conclusions deducing from the assumption are wrong. You have made a serious logical problem. Ex, assume "1+1=3 is true", we have 0=1=2=3=4=5=6=……. <--- Can you conclude this is true?
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原文連結 [永久失效]:
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