题文
已知向量
=(2,-2),

=(5,k),若|

-

|不超过5,则k的取值范围是( )。 题型:未知 难度:其他题型
答案

解析
该题暂无解析
考点
据考高分专家说,试题“已知向量=(2,-2),=(5,k.....”主要考查你对 [用坐标表示向量的数量积 ]考点的理解。
上一篇 — Could we put off our camping?— ________.We may as well go on as planned.
下一篇 Maggie has been fortunate to find a job she loves, and________, she gets well