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hoangtg2
2 năm trước
Hàm số y= 3x^2 + 2x + 1 / x-2 có đạo hàm y' = ax^2 + bx + c / (2x-4)^2. Tính a^2 - b^2 + c^2 A. -2560 B. -1760 C. 2848 D. -110
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