定线段AB所在直线与定平面a相交,P为直线AB外任一点,且P不在a上,直线AP、PB分别与a交于A`,B`,求证不论P在什么位置,A`B`恒过一定点.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 02:46:53
![定线段AB所在直线与定平面a相交,P为直线AB外任一点,且P不在a上,直线AP、PB分别与a交于A`,B`,求证不论P在什么位置,A`B`恒过一定点.](/uploads/image/z/8704380-12-0.jpg?t=%E5%AE%9A%E7%BA%BF%E6%AE%B5AB%E6%89%80%E5%9C%A8%E7%9B%B4%E7%BA%BF%E4%B8%8E%E5%AE%9A%E5%B9%B3%E9%9D%A2a%E7%9B%B8%E4%BA%A4%2CP%E4%B8%BA%E7%9B%B4%E7%BA%BFAB%E5%A4%96%E4%BB%BB%E4%B8%80%E7%82%B9%2C%E4%B8%94P%E4%B8%8D%E5%9C%A8a%E4%B8%8A%2C%E7%9B%B4%E7%BA%BFAP%E3%80%81PB%E5%88%86%E5%88%AB%E4%B8%8Ea%E4%BA%A4%E4%BA%8EA%60%2CB%60%2C%E6%B1%82%E8%AF%81%E4%B8%8D%E8%AE%BAP%E5%9C%A8%E4%BB%80%E4%B9%88%E4%BD%8D%E7%BD%AE%2CA%60B%60%E6%81%92%E8%BF%87%E4%B8%80%E5%AE%9A%E7%82%B9.)
xUMn@
;6VrdGB2H!IH 5РVKBmp|fflV\{.,}3,5|cƋF#3b5BE;qJ,GXelF,mX-!8O)Qߵ1tyHAz`!&0L#vu5$9X2*AçýzXf䭷Y\J:*+X_+Grnҷ.DVҬmƁ,"{WಜwaȓS000D_z]WϬ[fӖʟP J\$jq͗3q J@(FEd