题文
已知向量
=(cosθ,sinθ),向量

=(

,﹣1),则|2

﹣

|的最大值是 _________. 题型:未知 难度:其他题型
答案
4解析
该题暂无解析
考点
据考高分专家说,试题“已知向量=(cosθ,sinθ),.....”主要考查你对 [向量模的计算 ]考点的理解。
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