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Mathematics, 22.07.2021 09:50 cupcake3103670

Tìm cực trị của hàmf(x, y)
f(x, y) = 3x^2y + y^3 - 18x -30y
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Tìm cực trị của hàmf(x, y)
f(x, y) = 3x^2y + y^3 - 18x -30y
giải giúp mình câu này với...
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