cho tam giac ABC co AD,BE,CF la dg cao . CM:HA/BC+HB/AC+HC/AB>=3c

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cho tam giac ABC co AD,BE,CF la dg cao . CM:HA/BC+HB/AC+HC/AB>=3c

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Khoii Minh 4 years 2020-11-20T10:06:07+00:00 0 Answers 38 views 0

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