作者查詢 / hwider
作者 hwider 在 PTT [ Math ] 看板的留言(推文), 共22則
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4F推: 居然看懂了!謝謝04/30 16:26
1F推: 原來如此啊!04/30 16:22
1F推: 喔喔喔喔喔04/29 06:07
1F推: 1.AC>AE>AB 用看的,或者試試把題目畫誇張一點再看04/28 20:23
2F→: 把角ABC畫得超過90度看看04/28 20:24
1F推: 考"角平分線定理"04/28 19:51
2F推: 三角形ADE:三角形BDE=線AC:線BC04/28 19:57
1F推: 三角形OBD也是等腰三角形,線OD平行於線EC,04/25 16:57
2F→: 線DE垂直於線OD(因為切線),也垂直於線線EC04/25 16:57
14F推: 感謝分享!03/05 20:28