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2 years ago

14

Từ điểm A ở ngoài (O) kẻ các tiếp tuyến AB, AC với đường tròn (B và C là các tiếp điểm), BC cắt OA tại D, trên cung nhỏ BC lấy E

, ED cắt (O) tại F chứng minh góc BAE = góc CAF

1 answer:

Neko [114]2 years ago

4 0

I don’t understand what is that

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