高中数学代数与函数一其他练习题123
题目内容

已知向量a http://picflow.koolearn.com/upload/papers/20140824/20140824013559743601.png,b http://picflow.koolearn.com/upload/papers/20140824/20140824013559759608.png,且a⊥b.若 http://picflow.koolearn.com/upload/papers/20140824/20140824013559790403.png满足不等式 http://picflow.koolearn.com/upload/papers/20140824/20140824013559806530.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824013559821231.png的取值范围为

2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140824/20140824013559852394.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824013559868426.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824013559899434.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824013559915390.png

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