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English, 25.07.2021 20:20 andrewjarrah05

Cho đường tròn tâm C có phương trình x^2+y^2+4x-4y+3=0 1 Tìm tọa độ tâm và bán kình đường tròn 2 Gọi A và B là giao điểm của đường tròn C với trục Ox. Tìm phương trình tiếp tuyến với C tại mỗi điểm A và B 3 Gọi k là giao điểm của 2 tiếp tuyến ở câu 2.Tìm tọa độ tâm đường tròn nội tiếp tam giác ABK

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Cho đường tròn tâm C có phương trình x^2+y^2+4x-4y+3=0 1 Tìm tọa độ tâm và bán kình đường tròn 2 Gọi...
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