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khanh

Asked: Tháng Chín 10, 20232023-09-10T09:49:03+00:00 2023-09-10T09:49:03+00:00

Tính các cạnh và các góc của ΔABC biết `m_b = 6 , m_c = 9` và trọng tâm `G` nhìn cạnh `BC` theo góc 120 độ

Tính các cạnh và các góc của ΔABC biết
`m_b = 6 , m_c = 9` và trọng tâm `G` nhìn cạnh `BC` theo góc 120 độ

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