题文
如图,
为三条直线

围成的三角形的三个顶点,则

的值为( )

题型:未知 难度:其他题型
答案
-2解析
该题暂无解析
考点
据考高分专家说,试题“如图,为三条直线围成的三角形的三个.....”主要考查你对 [向量数量积的运算 ]考点的理解。
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