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Đồ thị của hàm số f x đối xứng qua gốc tọa độA. Đồ thị của hàm số f x đối xứng qua trục hoành.[r]
[toanmath.com] Đề thi HKI Toán 10 năm học 2017 – 2018 trường THPT Phan Bội Châu – Đăk Lăk
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