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Mathematics, 24.07.2021 19:40 libbybacon7

Tìm cực trị của các hàm 2 biến
1) f(x, y)=x^3 + 2xy -8y^3

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Tìm cực trị của các hàm 2 biến
1) f(x, y)=x^3 + 2xy -8y^3...
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