Mathematics, 17.10.2021 19:30 raulhill98

Cho hàm số y=x^4-2x^2+2021. hàm số nghịch biến trên khoảng nào dưới đây A (0,1) B(-1.0) C(2020,2021) D (-âm vô cực,2021)

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Cho hàm số y=x^4-2x^2+2021. hàm số nghịch biến trên khoảng nào dưới đây A (0,1) B(-1.0) C(2020,202...

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