TVET CHNS,Eng,Maths
Senior High
請問畫線的地方
(AB向量怎麼變成長度的)
3
““ 4有方二 [人8, 5V3 說 「斑
人 荀1生
~ 42三"46=(0-8,0-
2 全交
三(一8,0)=> |4C|三
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