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Lã Quang Minh
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2022-04-27 10:19:11
có:
+) đạo hàm của f(x) = f'(x) = 3x2
+) phương trình tiếp tuyến là : y= f'(x).(x-x0) + f(x0)
=> y = 3x2.(x-1) + 13 + 3 = 3x3 - 3x2 + 4