どなたか教えて下さい。よろしくお願い致します!
aとbが垂直＝a・bは0 つまり -1×4+4×(-3)+8×z=0 -4-12+8z=0 8z=16 z=2です。
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![基本例題の[2]についてです。ここの条件ですが、
a/3<=1<=4a/3とありますが4a... - 1](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1810404/thumb_l_webp_70236300-B387-4A8D-A246-76C58E626EEE.webp?Expires=1787749512&Signature=yAKEsJdXrhdGqZpTnzf0PsnJ6l1zOj9fFx0hcyvhecCHc-11~RqqydPthUkOpnB1DZa1qELukWAmi-i3u9AUqhMn0kjbaM40XpQ90wdPoqoMu5RN2nJ3bhYxpse6kVGOdjf~da2IuECIi52cu6zY1vh~eTKEm-z5an57nImEcN0-O0Q6H26Rl4SytRq5jAwl6z3MD627hHV9y4OfFsXiJLpoAJU9doSHWP0HCFZF-2TMyTTQ094Z26ClqyGgMlYl6wMdgxpeajpIeGu7As28BJk85OTVgMT5qRJgJ09gOHs4FmBrtnFDPCzNfBw4pDz1d8Y2yl1lalzoJqALk9WxIg__&Key-Pair-Id=K2W722D70GJS8W&Expires=1787749512&Signature=sjlIaK7UIizocApWtQ5AzyF5Wdy48VZoA1XisbGlpd2FyONvu4TtNxHKSUOoq1A0voxsdrWnKAOVXcSyVEg2d16fakR3Pe91IJrqPZFGI0GEO9B8tx579vF0t7GTyuCujVYJXRMCzV7NTou-YLDjTM6uNW1Ds3ANWVxe4CG3C7Exzy5TQzDLc8MzxjVIwBn2Fev-mQjufR-QkL21VTGiF39mWgU2VbXTB5cqHIYbAzHbZfhTfGm2zX2Q2OJ-Y25TV01PWjFOvJ8xEBDTXvOQcwDgtkRSUwJemZXJZ7TfHOowBIB0yl66J1UtDK8GWi4Edrt-2i73arcTqJpqbdB39Q__&Key-Pair-Id=K2W722D70GJS8W)
