1Cho hình bình hành ABCD.Đường thẳng qua A cắt tia CD,tia CB và cát đường thẳng BD lần lượt tại G,K và E (G,K và E nằm ngoài các đoạn thẳng CD,CB và BD).C/M EA^2=EK.EG 2, Cho hình bình hành ABCD.Trên cạnh AD có điểm I sao cho ID=2IA.Đường thẳng qua I và song song với AB cắt CA và CB ở K và H.Tính IK/IH NHANH MÌNH ĐANG CẦN GẤP làm 1 bài cũng dc mình cảm ơn trước

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