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Mathematics, 30.07.2021 01:00 dlewis9632
Bài 6 Cho tam giác ABC vuông tại A có AB > AC, M là điểm tùy ý trên cạnh BC. Qua M kẻ Mx BC và cắt đoạn AB tại I, cắt tia CA tại D a) Chứng minh ABC MDC. b) Chứng minh BI . BA = BM . BC. c) CI cắt BD tại K. Chứng minh BI . BA + CI . CK không phụ thuộc vị trí điểm M. d) Cho góc ACB = 600, tính
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Bài 6 Cho tam giác ABC vuông tại A có AB > AC, M là điểm tùy ý trên cạnh BC. Qua M kẻ Mx BC và cắ...
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