cho tam giác ABC vuông tại A . gọi M là trung điểm của AB , Trên tia đối của tia MC lấy điểm D sao cho MD = MC Chứng minh tam giác MAC = tam giác MBD Chứng minh BD vuông góc với BA qua D vẽ đường thẳng song song với AB , cắt tia AC tại E . Chứng minh CE = 2BD mình đg cần gấp ngày mai là nộp rồi ai nhanh mik tick nha

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