已知点A(1,-2),B(2,1),C(3,2)和D(-2,3)以向量AB,向量AC为一组基底来表示向量AD+向量BD+向量CD
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![已知点A(1,-2),B(2,1),C(3,2)和D(-2,3)以向量AB,向量AC为一组基底来表示向量AD+向量BD+向量CD](/uploads/image/z/6836864-32-4.jpg?t=%E5%B7%B2%E7%9F%A5%E7%82%B9A%EF%BC%881%2C-2%EF%BC%89%2CB%EF%BC%882%2C1%EF%BC%89%2CC%EF%BC%883%2C2%EF%BC%89%E5%92%8CD%EF%BC%88-2%2C3%EF%BC%89%E4%BB%A5%E5%90%91%E9%87%8FAB%2C%E5%90%91%E9%87%8FAC%E4%B8%BA%E4%B8%80%E7%BB%84%E5%9F%BA%E5%BA%95%E6%9D%A5%E8%A1%A8%E7%A4%BA%E5%90%91%E9%87%8FAD%2B%E5%90%91%E9%87%8FBD%2B%E5%90%91%E9%87%8FCD)
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