题文
已知平面直角坐标系内的点A(1,1),B(2,4),C(﹣1,3),![已知平面直角坐标系内的点A,B,C,的值为[ ]A.﹣4B.4C.﹣8D.8 已知平面直角坐标系内的点A,B,C,的值为[ ]A.﹣4B.4C.﹣8D.8](https://www.mshxw.com/file/tupian/20210916/40869b47d6824b43d239a5f931c0a658.png)
的值为[ ]A.﹣4
B.4
C.﹣8
D.8 题型:未知 难度:其他题型
答案
B解析
该题暂无解析
考点
据考高分专家说,试题“已知平面直角坐标系内的点A(.....”主要考查你对 [向量数量积的运算 ]考点的理解。
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