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Thaodang
2 năm trước
Cho tam giác ABC vuông tại A Phân giác CK Kẻ tia KH vuông CB CA cắt KH tại D C/m A, tam giác ACK = HCK B, Tam giác CDB cân C, AH // BD D, tìm điều kiện của Tam giác ABC để K cách đều C & B
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