Mathematics
Senior High
直線と法線ベクトルのところです。この問題の解き方を教えてもらいたいです🙇🏻♀️よろしくお願いします。
練習 次の2直線のなす鋭角αを求めよ。
32
3x-y-6=0,
丸
x-2y+4=0
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