在三角形ABC中,AB=3,AC=5, O、G、H分别为外心、重心、垂心,求1、向量OA·BC 2、向量GA·BC 3、向量HA·BC3Q ^_^
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![在三角形ABC中,AB=3,AC=5, O、G、H分别为外心、重心、垂心,求1、向量OA·BC 2、向量GA·BC 3、向量HA·BC3Q ^_^](/uploads/image/z/8488512-0-2.jpg?t=%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CAB%3D3%2CAC%3D5%2C+O%E3%80%81G%E3%80%81H%E5%88%86%E5%88%AB%E4%B8%BA%E5%A4%96%E5%BF%83%E3%80%81%E9%87%8D%E5%BF%83%E3%80%81%E5%9E%82%E5%BF%83%2C%E6%B1%821%E3%80%81%E5%90%91%E9%87%8FOA%C2%B7BC+2%E3%80%81%E5%90%91%E9%87%8FGA%C2%B7BC+3%E3%80%81%E5%90%91%E9%87%8FHA%C2%B7BC3Q+%5E_%5E)
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