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Khang Minh
Khang Minh

Khang Minh

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Asked: 2020-11-23T23:07:29+00:00 In:

cho tam giac ABC can tai A, duong cao AH. Goi K la hinh chieu vuong goc cua H len AC. Goi I la trung diem cua HK. Chung minh rang AI vuong goc BK

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cho tam giac ABC can tai A, duong cao AH. Goi K la hinh chieu vuong goc cua H len AC. Goi I la trung diem cua HK. Chung minh rang AI vuong goc BK

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