如图,四棱锥P﹣ABCD中,PD⊥底面ABCD,底面ABCD中,AB∥DC,AB⊥AD,又CD=6,AB=AD=PD=3,E为PC中点.
![](https://img.xkw.com/dksih/QBM/2020/1/7/2372089147547648/2372491118051328/STEM/ea316f2154a343e1aa3e2ebd8668e996.png?resizew=184)
(1)求证:BE∥平面PAD;
(2)求异面直线PA与CB所成角.
![](https://img.xkw.com/dksih/QBM/2020/1/7/2372089147547648/2372491118051328/STEM/ea316f2154a343e1aa3e2ebd8668e996.png?resizew=184)
(1)求证:BE∥平面PAD;
(2)求异面直线PA与CB所成角.
更新时间:2020-01-08 09:08:26
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