Mathematics
Senior High
(2 の矢印から下がわかりません！どなたか教えて下さい！
ベクトルと同じ向きの単位ベタトルをか
Z で表せ。
rsi衝
*%1) BD (2) AB+AC
111 Q①⑪ |IBD|=y32+42
=5
BD=AD-AB=gーヵ
たるも 5 と同じ向き
の単位ベクトルは
BD 1S+ぁ*
1 5“-の
co
での広坂
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