最后一道急需解决的SAT2 Math Two planes are perpendicular to each other.The locus of points at distance d from one of these planes and at distance e from the other is?正答:4 lines答案又是怎么回事呢?

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最后一道急需解决的SAT2 Math Two planes are perpendicular to each other.The locus of points at distance d from one of these planes and at distance e from the other is?正答:4 lines答案又是怎么回事呢?
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最后一道急需解决的SAT2 Math Two planes are perpendicular to each other.The locus of points at distance d from one of these planes and at distance e from the other is?正答:4 lines答案又是怎么回事呢?
最后一道急需解决的SAT2 Math
Two planes are perpendicular to each other.The locus of points at distance d from one of these planes and at distance e from the other is?
正答:4 lines
答案又是怎么回事呢?

最后一道急需解决的SAT2 Math Two planes are perpendicular to each other.The locus of points at distance d from one of these planes and at distance e from the other is?正答:4 lines答案又是怎么回事呢?
经常有人说SAT数学多么多么容易,其实根本不对.好多东西,美国小学生都知道,中国的大学生也不一定懂,因为语言和思维是不同的.
这个题很简单,2个面垂直,交出4个空间,在这里面有多少条直线它们彼此距离相等,画个图,很快看出是4条.