△ABC的顶点为A(3,1),B(x,-1),C(2,y),重心G(5/3,1),求AB边上的中线和高的长
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![△ABC的顶点为A(3,1),B(x,-1),C(2,y),重心G(5/3,1),求AB边上的中线和高的长](/uploads/image/z/12534729-33-9.jpg?t=%E2%96%B3ABC%E7%9A%84%E9%A1%B6%E7%82%B9%E4%B8%BAA%EF%BC%883%2C1%EF%BC%89%2CB%28x%2C-1%29%2CC%282%2Cy%29%2C%E9%87%8D%E5%BF%83G%285%2F3%2C1%29%2C%E6%B1%82AB%E8%BE%B9%E4%B8%8A%E7%9A%84%E4%B8%AD%E7%BA%BF%E5%92%8C%E9%AB%98%E7%9A%84%E9%95%BF)
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