大家看看我第一小题这样做对不对.还有,第二三小题怎么做下面的图为题.解1.由题意知因为PN平行且等于AD,PM平行且等于AB∠NPM=∠DAB所以MN平行且等于BD又BD在平面PBD上 ]MN不在平面PBD上 ﹜→MN∥
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 15:01:03
![大家看看我第一小题这样做对不对.还有,第二三小题怎么做下面的图为题.解1.由题意知因为PN平行且等于AD,PM平行且等于AB∠NPM=∠DAB所以MN平行且等于BD又BD在平面PBD上 ]MN不在平面PBD上 ﹜→MN∥](/uploads/image/z/10467117-45-7.jpg?t=%E5%A4%A7%E5%AE%B6%E7%9C%8B%E7%9C%8B%E6%88%91%E7%AC%AC%E4%B8%80%E5%B0%8F%E9%A2%98%E8%BF%99%E6%A0%B7%E5%81%9A%E5%AF%B9%E4%B8%8D%E5%AF%B9.%E8%BF%98%E6%9C%89%2C%E7%AC%AC%E4%BA%8C%E4%B8%89%E5%B0%8F%E9%A2%98%E6%80%8E%E4%B9%88%E5%81%9A%E4%B8%8B%E9%9D%A2%E7%9A%84%E5%9B%BE%E4%B8%BA%E9%A2%98.%E8%A7%A31.%E7%94%B1%E9%A2%98%E6%84%8F%E7%9F%A5%E5%9B%A0%E4%B8%BAPN%E5%B9%B3%E8%A1%8C%E4%B8%94%E7%AD%89%E4%BA%8EAD%2CPM%E5%B9%B3%E8%A1%8C%E4%B8%94%E7%AD%89%E4%BA%8EAB%E2%88%A0NPM%3D%E2%88%A0DAB%E6%89%80%E4%BB%A5MN%E5%B9%B3%E8%A1%8C%E4%B8%94%E7%AD%89%E4%BA%8EBD%E5%8F%88BD%E5%9C%A8%E5%B9%B3%E9%9D%A2PBD%E4%B8%8A+%5DMN%E4%B8%8D%E5%9C%A8%E5%B9%B3%E9%9D%A2PBD%E4%B8%8A+%EF%B9%9C%E2%86%92MN%E2%88%A5)
xTYOQ+30K&4
m*6MƚZk
mJmM5O!gQcLքp=,s&fi~<<Ԫzpٺ2v~sIM¿uir#W}EGc6TpԪWwxUpiy=P0?\q^;k}QNcmtSa9FnV]F4T+}(ьV]#=`mJ56rD-};-B8qMr.N[űSkwD3nl$59l6:zBx!,;-F33G8>I2L:#'ɔħWa İ/"<(@@yBVQ%d˔W!%YHüD@}aP2A%<