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tthitrang13
2 năm trước
Cho Tam giác ABC vuông tại A, đường cao AH(H thuộc BC) và phân giác BE của ABC (E thuộc AC) cắt nhau tại I. Chứng minh: a)IH×AB=IA×BH b)Tam giác BHA đồng dạng Tam giác BAC => AB^2=BH×BC c)IH/IA=AE/EC d) Tam giác AIE cân Giải hộ mình càng nhanh càng tốt mình vote 5⭐
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