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考研
设直线L:及平面π:4x-2y+z-6=0,则直线L( ).
设直线L:及平面π:4x-2y+z-6=0,则直线L( ).
admin
2022-10-27
10
问题
设直线L:
及平面π:4x-2y+z-6=0,则直线L( ).
选项
A、平行于平面π
B、在平面π上
C、垂直于平面π
D、与平面π斜交
答案
C
解析
直线L的方向向量为s={1,3,2}×{2,-1,-10}={-28,14,-7},
因为s//n,所以直线L与平面π垂直,正确答案为(C).
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考研数学一
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