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Mathematics, 09.01.2022 16:40 bankskry

Cho tam giác ABC có B=80, C=30*. tia phân giác góc A cắt BC ở D tính ADC, ADB

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Cho tam giác ABC có B=80, C=30*. tia phân giác góc A cắt BC ở D tính ADC, ADB...
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