已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向量BD等于1/3向量BC.求D点坐标,求向量AD乘向量BC
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![已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向量BD等于1/3向量BC.求D点坐标,求向量AD乘向量BC](/uploads/image/z/8558098-34-8.jpg?t=%E5%B7%B2%E7%9F%A5%E4%B8%89%E8%A7%92%E5%BD%A2ABC%2CA%EF%BC%881%2C3%EF%BC%89%2CB%EF%BC%883%2C-3%EF%BC%89%2CC%286%2C3%29.D%E6%98%AFBC%E4%B8%8A%E4%B8%80%E7%82%B9%E4%B8%94%E5%90%91%E5%B7%B2%E7%9F%A5%E4%B8%89%E8%A7%92%E5%BD%A2ABC%2CA%EF%BC%881%2C3%EF%BC%89%2CB%EF%BC%883%2C-3%EF%BC%89%2CC%286%2C3%29.D%E6%98%AFBC%E4%B8%8A%E4%B8%80%E7%82%B9%E4%B8%94%E5%90%91%E9%87%8FBD%E7%AD%89%E4%BA%8E1%2F3%E5%90%91%E9%87%8FBC.%E6%B1%82D%E7%82%B9%E5%9D%90%E6%A0%87%2C%E6%B1%82%E5%90%91%E9%87%8FAD%E4%B9%98%E5%90%91%E9%87%8FBC)
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已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向量BD等于1/3向量BC.求D点坐标,求向量AD乘向量BC
已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向
已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向量BD等于1/3向量BC.求D点坐标,求向量AD乘向量BC
已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向已知三角形ABC,A(1,3),B(3,-3),C(6,3).D是BC上一点且向量BD等于1/3向量BC.求D点坐标,求向量AD乘向量BC