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两直线是否平行有几种判定方法

更新时间: 2021-03-27 09:16:47     

1、两直线是否平行有8种判定方法。

2、初中:同位角相等,两直线平行、内错角相等,两直线平行、同旁内角互补,两直线平行。高中:直线方程y=kx+b、斜率k相等,截距b不相等的2条直线平行、直线方程Ax+By+C=0两直线平行时:A1/A2=B1/B2≠C1/C2。

关键词: 直线 是否 平行 判定 方法

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