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nguyenphuong0968767103
2 năm trước
Một ng đứng trc một gương phẳng ccahs gương 1cm , nhìn vào gương ng đó thấy ảnh của mik a)Ảnh của ng đó cách gương bao nhiêu? b)Nếu ng đó lùi ra xa gương thêm 0,5cm thì ảnh cách ng bao nhiêu?
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