upload.exam24h.com thi...Câu 42: Cho hàm sé y = x 4 + 2x2 + 1 có thi (C). Phuøng trinh tiép tuyén cùa thi B. y = 8x + 4 12 2 BC = 2, AD Câu 43: Các duðng tiêm can dúng
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